Semi enclosed type, 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 service parts in CNC machine tools, electronic equipment, counting devices, machinery and electrical machines, etc. Product Name : Cable Drag Chain Material : Plastic Internal Size : 18 x 37mm/0.7" x 1.5" (H*W) External Size : 23 x 47mm/0.9" x 1.9" (H*W) Total Length(Approx.) : 1M/39.4" Color : Black Weight : 380g Package Content : 1 x Cable Drag Chain 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.