Canvas snap extenders for hard to reach snaps on boat canvas, cockpit covers, isinglass, pop-up campers and RV’s.


Canvas snap extenders for hard to reach snaps on boat canvas, cockpit covers, isinglass, pop-up campers and RV’s. Each package includes 4 self-adjusting snap extenders and each piece will extend up to 1.75″ or snap two pieces together to double the length.
Ships within 24 hours.

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Additional information

Weight 4 oz
Dimensions 6 × 4 × .25 in



Product ships the same day if ordered before 6pm EST.

91 reviews for SELF ADJUSTING SNAP-X-TENDZ (Tan)

  1. William Stewart

  2. Diane Harrison

    Great product. My husband has diabetic neuropathy and has trouble pulling and snapping the cover on our pontoon boat. These extenders make it much easier for him to do the cover.

  3. Diane Harrison

    Great product….ordered more to use all the way around our pontoon to make putting the cover on easier.

  4. Herbert

    They were what I was looking for and customer service was excellent.

  5. Ronald R. Fehr

    Now I can snap my top again. Saved me some dollars.

  6. ryan b.

  7. Stephen B.

  8. Brandon Parrow

    Snaps are perfect


    good product, need strength to extend them to full advertised length

  10. Vincent Passero

    I installed thick, tinted plexiglass over all the windows on the pilothouse of my boat, which made the snap-on window shades no longer fit. After searching everywhere for snap extenders, I found Mr. Snappy. The product came in just three days and worked exactly as advertised. They have now held up perfectly through an entire year outside in the sun and rain of Florida.

  11. Joseph P.

  12. Diane

    Worked great for my husband who had neuropathy in his hands.

  13. Anthony

    Product works as shown …

  14. Howard M.

    Quality and workmanship

  15. wayne shelton

    got my new snaps today, above and beyond service. thanks

  16. Jeffrey White

  17. william Bailey


  18. Mark Vincent

  19. William Moore

  20. Marty Smith

  21. Janet Brooks

    On a 1 to 10 these snaps are a 12+! My husband is very happy. We had previously purchased the leather non stretch versions from another vendor and still found it difficult to snap our canvas. These take all of the effort out of securing the canvas to the boat. Wonderful and we highly recommend!

  22. Bryan Hunter

    Thank you very much for your kind words!!! We are very proud to have the only patented snap extenders on the market and helping our fellow boaters.

  23. Amy

    Product worked perfect

  24. Bryan Hunter

    Thank You !!

  25. David Swanson

  26. Amy

    These worked perfect on our boat canvas that was just a tad to tight

  27. Nelson Allen Sr

    See previous review

  28. Don

    Snaps work well

  29. Mary C.

    Great product.

  30. Anonymous

    no comment

  31. Pietro

    I’m not using these for their designed usage but to extend some snaps on some pouches I have so I can close the covers on the pouches. They are perfect … and honestly the only product I found like it.

  32. Mark Durand

    Was exactly what I was looking for. Hopefully they wear good in weather.

  33. Bruce

    Solves problems with my mooring cover

  34. Janet Davis Brooks

    We are repeat customers. Great problem solver for our marine canvas. We were delighted to find these snaps and highly recommend them.

  35. Colleen S.

    They could be good, but were smaller than I thought. Also we are needing a double female snap instead. Do you have that?

  36. Bryan Hunter

    Hi Colleen, what size extender do you need ?
    the ones you received stretch up to 1.5″
    We can make custom able. female ones to your specs. please contact us at

  37. SEan M.

    great idea, let me get another season out of my bow canvas.

  38. Patricia A.

    Excellent product. Best boat cover extension I ever found!

  39. gary


  40. Lori

    Perfect for the boat canvas

  41. Kathi G.

    Snaps are perfect! Thank you!

  42. Mary C.


  43. jerome offner


  44. Mark


  45. Marko

    2nd set that I purchased, 1st set was black, the tan set matches the leather seats.

  46. David Ford

    Great 👍

  47. Paul

    Good price and quality.

  48. Bryan

    This is an invaluable product. It allows for flexible Installation with canvas shrinkage as well as a little give when the wind is tropical !! I’m a big fan…

  49. John N.

    Excellent quality

  50. Rick

    Just what I needed. Sturdy snaps and elastic. Very well made. The color was closer to white than tan, but I can live with that. If you can make it in brown, I’ll buy them too!!!

  51. Lawrence Elliott

    Received what was promised and worked as promised. Very happy with quality and effectiveness

  52. Simon H.

    Great product. I have been fighting with my boat cover for our Formula Sun Sport for years. Not anymore. These snaps work great. I love them. Hope they hold up.

  53. Anonymous


  54. Chris Stavrakos

    They really really work !!!

  55. Anonymous

    Expensive but able to solve a problem that would be much more expensive to cure without these.

  56. gary

    Very Satisfied with product

  57. Elizabeth Bradbury

    These make snapping our canvas on the boat so much easier!

  58. Barbara

    These extenders are a lifesaver! Covering my boat was a nightmare because the canvas has shrunk over the years. I like that the extenders stretch and they appear to be high quality and very durable. I would order them again, but hopefully I won’t need to for a while.

  59. Martha C.

    Perfect solution to our shrunken boat cover! This will save us from purchasing a new cover for a little bit. Would love to see these in an additional size option that’s a little longer. These have really saved the day and makes putting on the boat cover not so much of a struggle now.

  60. Martin B.

    Product is awesome and works as advertised

  61. Bob D.

    Great product. Works great

  62. Anonymous

    Fits well

  63. PEARL G.

    The snaps are of excellent quality and worked well for my purpose.

  64. Anonymous

    Have not used yet but seem to be made well.

  65. Susann

    These are awesome BECAUSE they have very firm elasticity. The regular nylon webbing type only work if an exact fit. I am definitely buying more of these for my shrunken boat cover!!

  66. Christopher P.

    Perfect for adjusting the fit on my boat cover.

  67. Tim Campbell


  68. Keith

    worked perfectly

  69. Anonymous

    Great service and works great.

  70. Joseph Fleming

    This is better than what I previously purchased at a marine store .

  71. BettyAnn Elefante

    Just what I needed

  72. Anonymous

    did the job

  73. John C.

    Great product! Worked perfectly for my boat canvas .

  74. robert b.

    Work as advertised

  75. MARTIN B.

    This is my second time to order this item, it works just like advertised.

  76. Robert D.

    Great product. As advertised.

  77. Bruce Moore


  78. Keith

    I had a previous order with same items. They solved my problem so I ordered a few more packs.

  79. darrel5859

    Very please with the product. Great customer service thanks

  80. DOUGLAS K.

    Product as stated

  81. Scott M.

    I like that they are elastic so they stretch. They last about two summer seasons.

  82. kevin moodt

    work as they should

  83. Larry Jones

    Great built product, elastic material stronger then competitors rubberized material

  84. Mark

    Excellent service and quality products.

  85. Anonymous

    Worked perfectly

  86. Mary Lynn Perry

    Love them!

  87. Christopher S.

    Work great do the job

  88. Anonymous

    Works great. Makes putting the cover on my pontoon so much easier.

  89. Peter O.

    Works great!

  90. Michael Kane

    Ordered a package of snaps, and they arrived quickly. The snaps are perfect extensions for my mooring cover that seems to shrink over the years.

  91. patricia Potter


  92. Mike Olszewski

    Helps when the old snaps just won’t quite reach anymore.

  93. Kathy Williams

    Just what we needed!

  94. Lisa

    Good quality

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