Type: Semi Enclosed Type (Inner side openable); Bending radius: R38; Internal Size: 18mm x 50mm (Inner H x Inner W); Length: 1 Meter/3.28 Ft Change Size: You could link the cables with each other to form one long length you need. The drag chain has been widely used in CNC machine tools, electronic equipment, glass machinery, doors and windows machinery, injection molding machines, robots, automated warehouses and so on. NOTE: When the moving terminal is bent as "U" shape, the longer part will lay flat but the whole chain can not completely lay flat due to prestress.