Features: New plastic material synthesized by ABS+PC laminated card, the surface is brighter and smoother, there is no iron wire inside, the toughness is stronger, the steel wire will not rust and break for a long time. High temperature resistance, severe cold resistance, longer service life, It will not be broken when an adult is completely stepped on it. You will be able to return to the original state and intact after a while. You might as well try it. Clamp Size: Based on the Outer Diameter of the PVC pipe it clips on. Suitable pipe outer diameter:24-26mm Package list: 10 Pcs 1 in. Greenhouse Frame and Film Clamp Connector