General description 210D Waterproof Sail Cover is designed to protect your mainsail boom from UV rays, dust, and weather elements. Made from breathable and weather-proof Oxford cloth, this cover is suitable for 9-10ft booms and features sewn-in magic fastening straps for easy and secure use. Technical specifications Material: Oxford cloth Color: Blue Size: Suitable for 9-10ft boom Measurement allowed error: +/- 1-3cm Other information Package Contents: 1x Waterproof Sail Cover Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.