Made of plastic material, it is waterproof, windproof, tear , and The waterproof cloth clip can withstand low or high temperatures and can bite on damp materials, effectively tightening and fixing. The tent clip has an internal circular lock and an external ring, which can more stably prevent the tarpaulin from falling off No need to drill holes on the tarpaulin, easy to remove after use, leaving only a few wrinkles. Suitable for outdoor camping tents, awnings, caravans, tarpaulins, canvas, awnings, boat covers, swimming pool covers, etc., suitable for outdoor explorers, campers, and travelers. There is a hole at the back of the tent clip that can be connected to windproof ropes, quick hooks, ground studs, etc., without the need to cut holes in the waterproof cloth. Color: Black Material: Plastic Package Contents: 20 x Buttons 1 x Bag 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.