MatriauThis bche clip adopts a high resistance plastic which makes it durable and lger transporteravoid beating hard in the wind;so it can withstand the pulling force and it is difficult to detach after attaching the tent. Practical designBche pliers with a specially alligator mouth with tooth design,gear-shaped mouth makes sure that the clip bites the plug well, there is a hole at the end of the clip, suitable for attaching tempte straps on the tent. Multifunction safety clips can be used for tents, awnings, bches, caravans, boat canvases, awnings, pool covers, temporary shelters or any fabric covering requiring additional support points. Easy to usethere is a screw on the clip that allows to control the tightening of the clip without damaging the plug. Screw locking structure, just tighten the screw, the clips will be well locked, tighten well. You can screw them on the plug or cover you use, adjust the tightening using the screw. Best ChoiceThis is the best choice for outdoor camping, sailing or picnic.