ITEM NAME:10 x 20mm Black Plastic Drag Chain Cable Carrier For CNC Router Mill Z Material : Plastic Inner Size : 10 x 20mm / 0.39" x 0.79" (H*W); Length:1m Color : Black Features: easy installation and repair, free movement, low noise, wear-resistant, high-speed movement. Suitable for using in reciprocating motion of the occasion, is able to build in cable, tubing, water pipes, etc. Used widely as a component and sevice parts in CNC machine tools, electronic equipments, counting devices, laser equipments, electrical machines, etc. 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. Package Included: 1 x Cable Drag Chain Wire Carrier.Inner Size : 10 x 20mm / 0.39" x 0.79" (H W);. Suitable for using in reciprocating motion of the occasion, is able to build in cable, tubing, water pipes, etc. Material : Plastic.