Specifications: The product is made of heavy duty and durable material with reinforced webbing strap. It has weighted bottom and will automatic open. This drift sock anchor is great for stabilizing your boat in wind cross current conditions. You can use it for power boats, sail boats, inflatable boat, jet skis, kayaks. Item Name: Boat Anchor Sock Material: Polyester Fabric, PVC Features: Durable, Portable, Easy to Use S Size: 60cm/24", Recommended for 15-17ft Boats (Approx.) M Size: 80cm/32", Recommended for 17-20ft Boats (Approx.) L Size: 107cm/42", Recommended for 21-25ft Boats (Approx.) XL Size: 135cm/53", Recommended for 26-30ft Boats (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Boat Anchor Sock 1 x Float