Ronix Fin-S 2.0 Surf Fin PackRonix Fin S 2. 0 Tool Less Fibreglass Fin (3 Pack) These tool less wakesurfing fins suit riders who want quick, hassle free fin swaps without carrying tools to the boat. The Spring Lock Technology attachment system lets you change fins in seconds, making them ideal if you're testing different setups or sharing a board across skill levels. The thin profiled asymmetrical cupped design tracks harder and initiates turns more cleanly than traditional fin