Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Mast Track Box 10 inch Back Chinook Chinook Mast Track Box 10 inch Product ID: 301 Brand: Chinook 2025-05-25 From: $29.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook Mast Track Box 10 inch from Chinook to discover other options and shipping details. Description The first choice by quality board builders, 2 sizes available 8 inch and 10 inch Back to Windsurfing Other - Construction and Repair Parts More Construction and Repair Parts and others in our range Chinook Power Fin Box Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Board Vent With Thumb Screw 1 Inch Chinook 8 inch Mast Box Vented With Screw Chinook Board Vent Retro Fit with Thumb Screw 5-8 inch Chinook Footstrap Inserts 2 Hole Chinook Tuttle Fin Box Chinook Footstrap Plugs Fin US Box 8 inch Slot Box Fin Box