Product Name : Cable Drag Chain;Material : Plastic Internal Size : 10 x 20mm/0.4inch x 0.8inch (H*W);External Size : 15 x 27mm/ 0.6inch x 1.1inch (H*W) Total Length : 1M/39.4inch;Cable Max.Outer Diameter : 11mm/0.4inch Color : Black;Net Weight : 175g/pcs Open on both side, move flexibly, low noise, easy installation. Suitable for using in reciprocating motion of the occasion, is able to built in cable, tubing, water pipes, etc. Used widely as a component and sevice parts in CNC machine tools, electronic equipment, counting devices, machinery and electrical machines ,etc. Package Content : 4 x Cable Drag Chain Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.