Vevor Greenhouse Wiggle Wire & Aluminum Alloy Spring Lock U-channel 6.56ft 40pcs40 PCS Spring Wire & U-ChannelAluminum Alloy MaterialPE Covered Wiggle WireEasy To InstallSturdy & StableWide ApplicationChannel Thickness: 1/16'/1.5 MM,Channel Length: 6.5 FT/2 M,Lock Channel Material: Aluminum alloy,Spring Wire Length: 6.5 FT/2 M,Model: YMCT-2011,Channel Width: 1.25'/3.2 CM,Quantity: 40 pcs each,Wiggle Wire Material: PE and iron