The Cable Drag Chain is easy to install and repair, free movement, low noise, wear-resistant, high-speed movementYou can link the cables with each other to form long length you need, Internal Size : 10 x 20mm/0.39inch x 0.79inch(H*W), External Size : 14.5 x 27.5mm/0.57inch x 1.08inch(H*W), Total Length : 1Meter/39.4inch, Weight : 176g, Package Content : 1pcs Cable Drag Chain,extra plus a pair of connectorsGloss finish,Low temperature resistance, wear resistance and corrosion resistanceSuitable for reciprocating motion in occasions, with built-in cables, pipes, water pipesThe Drag chain has been widely used for CNC machine tools,electronic equipments, fire machinery, stone machinery, glass machinery, doors and windows machinery, counting devices, electrical machines