1.PVC cable trunking, cable duct, conduit 2.have different color 3.Material: PVC(UPVC) 4.Provide ... beautiful,Decent packaging4).Use: For internal wiring,protecting the wire under 1200v5).Effect: After using,wiring easily and trimly,installing reliably,and ... -pull,installed with solvent cementing and threading joinin cheap PVC Wiring Duct