This soft rubber scupper plug is designed to fit circular scuppers in your sit-on-top kayak. The conical shape and hollow design allow for the rubber construction to accommodatescupper holes ranging from1.13 to 1.40 in diameter. The rigid center core gives you a nice place to push the plug in place and the pull tab makes for easy removal. Sold in a 2 pack Size – small / medium Fits scupper holes ranging from1.13 to 1.40 diameter Made in the USA Covered by our Built for Life Guarantee SKU:YEP-1003