ADJUSTABLE STRAP: This wind sail is designed adjustable, can suit perfectly for your boat No need to worry about the size. Compact design: easy to set up and quick to deploy Through the clear window you can see things behind the sail. PREMIUM MATERIAL: This boat wind sail is made of PVC material, and wont absorb water. EXCELLENT USAGE: This Wind Paddle is easy to use, hold the clips can make run, lay the clip to stop, simple to operate. WIDE APPLICATION: This Wind Paddle is suitable for of kayaks, canoes, Inflatables boats and so on. Colour:Blue Material:Polyester Taffeta+PVC Package Contents: 2x kayak folding sail Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.