Pipe clamp is made of metal , used for fitting the pipe , many sizes to chose: 16mm, 20mm, 25mm, 32mm, 40mm, 50mm Pipe clamp is made of metal , used for fitting the pipe , has 16mm, 20mm, 25mm, 32mm, 40mm, 50mm these types ,it stands for the distance between two endspacking : 100pcs/ box,1000pcs/ cartonMeans : 0.017G.W: 9KGS full saddle