Yescom 10pcs Replacement 3 Way Nylon Connectors Corners for Grow Tent w/ 16mm 5/8" Resistance Poles 10pcs Replacement 3 Way Connector Corners Fits for grow tents that use 16mm(5/8") diameter tent poles Made of nylon Resistance to hydrolysis, chemical resistance, light weight, dimensional stability and heat resistance with a long-term heat resistance of 130C Well-suited for a wide range of applications