uxcell 1.6M 17mmx21mm Black PVC Flexible Corrugated Tubing Cable Conduit Pipe Country of Manufacture: CHINA; Material: PVC Net Weight: 32g; Package Content: 1 x Corrugated Tubing Main Color: Black; Tube OD: 21mm/0.83" Tube Inner Dia: 17mm/0.67" Tube Length: 1.6M/5ft