ITEM NAME:Machine tools plastic towline drag chain Black 15 x 20 mm M6C6 Machine tools plastic towline drag chain Black 15 x 20 mm M6C6 Product Name: Power chain, Material: Plastic Internal size: 15 x 20 mm / 0.6 " x 0.8 " (H x W); External size: 20 x 28mm / 0.8 " x 1.1 " (H x W) Overall Length: 1M; Cable Max outside diameter. 15 mm / 0.6 " Color: Black; Net Weight: 258g 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 contents: 1 x power chains 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 +/- 1-3 cm.