Specification Brand : Aexit BulletPoint1 : Country of Manufacture: CHINA; Brand: BulletPoint2 : Material: PVC; Net Weight: 162g BulletPoint3 : Package Content: 1 x Corrugated Tubing; Main Color: Black BulletPoint4 : Length: 5M/16ft BulletPoint5 : Diameter: 10 x 13mm/0.4" x 0.5"(Inner D*OD) Color : Black ItemName : Aexit Flexible PVC Electrical Boxes, Conduit & Fittings 13mm Outer Dia Corrugated Tubing Conduit Tube Electrical Boxes Pipe 5M ItemTypeKeyword : electrical-conduits Manufacturer : Aexit Material : Aluminum ModelNumber : modle NominalWallThickness : 1.3 mm NumberOfItems : 10 PartNumber : 181212c32671 ProductDescription : Both of the Internal and External is Corrugated.Very flexible - perfect for working in confined areas.Reduces the number of required fittings and permits the installer/user to make smooth, tight turns. Saves time, labor and cost.PVC tube with raised exterior PVC helix for strength and flexibility.Coils easily for storage and transportation., sun, ozone (UV) and chemical resistant.Smooth inside - permits unrestricted flow, reducing operating costs.Designed for use with barbed or insert fittings and appropriate clamps.Crush and impact resistant.Widely use for machinery lathe, electircal equipments, food machinery equipment, automatic instrument, electirc motor, cable protection, etc.