Feature Breathable material UV and mildew treated Weather proof UV protected waterproof Suitable 10 11ft boom Sail Tie down strap also included Easy and quick to use sewn in magic fastening straps to hold cover secureSpecification Product Name Mainsail Boom CoverColor BlueMaterial 420D Oxford ClothLength 3 5m 11 4ftQuantity 1 pcNote 1 We provide clear pictures measurements where possible Please check as much as possible to make sure the item is the one that you need 2 Please allow 0 5 1 inch difference due to manual measurement 1inch 2 54cm3 Instruction is not included Professional Installation Is Highly Recommended If you want to know how to use or install it please contact us by Email We will provide help as much as possible Package Included 1 X Cover1 X Bag storage