High Quality Marine Grade handle constructed of aircraft grade, triple anodized aluminum to provide years of maintenance free use.. Telescoping shafts feature two non-slip hand grips with positive twist lock to provide extension from 3' (91 cm) to 6' (183 cm) Stainless steel push button quick connect/disconnect allows for instant attachment of all Extend-A-Brush accessories Designed to float if dropped overboard 7/8" outer diameter with 3/4" insert