PREMIUM MATERIALThe surfboard fin is made of high quality plastic material, which is tough, wear-resistant and durable to use. Can increase the stability of the surfboard to keep you safe when surfing. SUPERIOR PROFORMANCEThis allows for a moderate amount of flex that while having a lighter material the flex pattern still allows you to have smooth transitions through turns. INSTRUCTIONSSurfboard tail fin use glue to stick the fin base on the back end of the surfboard, and plug the fin into the base. Detachable and adjustable design is easy to install and use, and can meet your various needs. WIDE APPLICATIONSSuitable for various kinds of inflatable surfboards. Another favorite of the pros and beginners alike. This fin will suit the any surfer or those who want to push themselves to the limit.