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 2024-12-05 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 Patrik US Box G10 Blanker Chinook Delrin Flat Washer Chinook Vent Slot Screw Streamlined Quick Connect Deck Plate Ezzy Sail Keyring K4 Fins Slot Box Box Blanker 130mm Chinook Webbing Tendon Safety Strap Ezzy Volcano Chinook Fin Bolt Neoprene Washer K4 Fins US Box Blanker