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 2024-12-25 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 RDM Boom Shim for Pro Front End Patrik Slot Box Box Blanker 130mm Goya Adjustable Collar And Pin For RDM Extension Goya Tendon Joint Chinook Coffee Mug Chinook Delrin Flat Washer Chinook 4 mm Prestretch Rope Patrik RDM Cambers Chinook Webbing Tendon Safety Strap Patrik Windsurfer Nose Protector