Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Mast Track Box 8 inch Back Chinook Chinook Mast Track Box 8 inch Product ID: 304 Brand: Chinook 2025-05-02 From: $29.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook Mast Track Box 8 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 Board Vent Retro Fit with Thumb Screw 5-8 inch Chinook Board Vent With Thumb Screw 1 Inch Chinook 8 inch Mast Box Vented With Screw Chinook Mast Track Box 10 inch 8 inch Mast Track Box Chinook Footstrap Inserts 5 Hole Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Vent Thumb Screw Chinook Tuttle Fin Box Chinook Footstrap Inserts 2 Hole