A Triangular Vacuum Head with Swivel Adaptor makes pool cleaning easier with a durable and weighted head to keep the cleaner against the pool floor. Having trouble cleaning the corners and edges of your pool? Not anymore! The Triangular Vacuum Heads shape and design work together to provide an effective solution for those edges and corners. The cleaning bristles are durable enough to last years, while still being delicate to clean your pools liner gently yet effectively.