Park pliers are a convenient tool for chain link adjustment on bicycles, designed to simplify connecting and disconnecting master links that can seize due to dirt or corrosion. Specially shaped tips easily open and close master links. The ergonomic vinyl-coated handles provide a secure grip. Compatible with 5- to 12-speed derailleur chains, including SRAM AXS, Shimano XTR, and Campagnolo 13-speed chains. Not intended for traditional two- or three-piece master links found on single- and three-speed bikes.