Reliable Material - This ISUP fin is made of high-quality PA6 nylon + fiberglass, which make the fin tough and firm.
Universal Size - It is a 9" paddle board center fin that fits most inflatable stand up paddle boards. The bottom size of this SUP fin is 18.5*3.3cm(7.28*1.3in). Please check your paddle board fin box before purchase.
Easy Installation - This center fin is featured with quick release. Slide in, lock and done! Very easy and quick.