Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesChinook SDM Mast Extension Collar And Pin Back Chinook Chinook SDM Mast Extension Collar And Pin Product ID: c175 Brand: Chinook 2024-05-29 From: $41.50 AUD View or buy the Bits and Pieces Windsurfing Other - Chinook SDM Mast Extension Collar And Pin from Chinook to discover other options and shipping details. Description Tried and trusted. Fits 46mm extension tubes. Back to Windsurfing Other - Bits and Pieces More Bits and Pieces and others in our range Chinook Adjustable Collar And Pin For SDM Extension Goya Adjustable Collar And Pin For RDM Extension Patrik Tube Rod Batten Joiner Goya Footstrap Anti Twist Washer Ezzy Split Cam Goya Fin Bolt Rubber Washer Chinook Rubber Power Joint 8mm with stainless studs Goya Tendon Joint Ezzy Batten Tension Adjuster Ezzy Batten Tension Adjuster