15 x 20mm 1.07M Open On Both Side Wire Carrier Cable Drag Chain Internal Size: 15mm * 20mm; External Size: 19mm * 28mm Total Length: 1.07M/42.1" Open on both side, move flexibly, low noise, easy installation. Reinforced nylon, low temperature resistance, wear resistance, corrosion resistance. Suitable for using in reciprocating motion of the occasion, is able to built in cable, tubing, water pipes, etc.