Strong Bite Force: The unique crocodile mouth design provides strong grip, even ultra-thin fabrics are easy to bite and do not fall off easily. They will not create any weak points or holes in any tarpaulin. High-Quality Material: These clips are made of industrial-grade ABS, which is durable, corrosion-resistant, smooth-surfaced, and lightweight. Well-made and sturdy enough. Practical Design: There is a hole at the end of the clip, suitable for fixing the windproof strap to the tent. Combined with a long elastic cord, even if it is pulled by the wind, it will not leave marks on the fabric, making it durable. Easy to Use: Screw locking structure, simply tighten the screws and the clip will be locked firmly, tight. You can screw them onto the tarp or cover you are using, using the screws to adjust the tightness. Versatile: They can be used for a variety of things. These clips can be used on awnings, caravans, tarps, boat covers, suitable for outdoor camping, picnics, sailboats, tents