Durable Material: Made from durable, drop-resistant, high-strength PA materials, waterproof and breakage-proof, have a certain thickness for a long-time use Strong Gripping Power: The awning trap clip with unique toothed alligator mouth design makes the teeth more stable. Alligator mouths can open about 0.5 inch, perfect for heavy duty tarps. Easy to Use: Tarp Clips Heavy Duty are easy to install or remove, just tighten or loosen the screw knob to adjust on thick or thin tarps. Lightweight Size: It is lightweight to carry anywhere, the hole is 0.5 inch in diameter, So you can use a tie or rope to secure it at any time. Wide Applications: 12 Pack Pcs Clips for holding up tarp, canopy, boat cover, rainfly, A great outdoors camping tool for any camping enthusiast.