2pcs Diving Fin Strap Adjustable Quick Release Buckle Universal Scuba Diving Fin Spring Heel Strap Replacement gray.Feature: 1. Selected Materials: The flipper replacement straps are durable and resistant to wear and tear. 2. Applicability: Adjustable diving fin strap, A buckle for AF800 swimming fins, B buckle for AF700, AF701 swimming fins. 3. Easy To Replace: Easy to use and simple to operate, the replacement operation allows you to easily and quickly replace a damaged strap on a sea diving t