The clip is made of nylon with very good drop resistance and is very durable. Reasonable lock design: the fixture's toothed interface and screw lock design can steadiness the without detachment and damage. The tightness can be adjusted by twisting the knob on the clip, making it easy to install and disassemble, and easy to carry. Suitable for various outdoor activities such as camping, hiking, exploration, mountaineering, etc., providing stable support and fixation for tents. Wide Usage: great for holding up tarp, canopy, , car or truck cover, bike cover, boat cover, pool cover, sun shade, temporary projector screen, couch cover, BBQ cover, etc. Please Note: Suitable for thickers fabric surfaces within 3mm or 0.12inch, not recommended for use on fabrics that are too light and thin. Depending on the batch, the product may have color differences, which does not affect Colour:Black Material:nylon Package Contents: 10 x Tarp Clips 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.