Feature: 1. Wear resistant and skid resistant, low bass and high speed, smooth and firm surface 2. Reducing resistance and friction with air pipe, low noise, high speed and continuous movement 3. Made of nylon‑PA66, 25° low temperature resistance and 100° high temperature resistance 4. Allow you to make detachable combination of any length, to meet the needs of work 5. Select excellent materials with accurate processing, product life is greatly extended Specification: Item Type: Drag Chain Material: Nylon 66 Application: Suitable for engraving machine, CNC machine tool, mechanical arm, professional cable protection accessories Series: Low noise series Length: Approx. 0.7meter / 2.3ft(detachable assembly of any length) Working Temperature: - 25 ~ 100 ℃ . Model (inner height x inner width / mm)(approx.) Outer height x outer width / mm(approx.) Turning radius / R (mm)(approx.) Joint length / mm(approx.) Pitch / mm(approx.) D20x25 35 x 39mm / 1.4 x 1.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 2in 33.5mm / 1.3in D20x38 35 x 52mm / 1.4 x 2in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.10in 50mm / 3in 33.5mm / 1.4in D20x50 35 x 64mm / 1.4 x 2.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 4in 33.5mm / 1.5in D20x57 35 x 71mm / 1.4 x 2.8in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 5in 33.5mm / 1.6in D20x67 35 x 74mm / 1.4 x 2.9in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 6in 33.5mm / 1.7in D20x75 35 x 89mm / 1.4 x 3.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 7in 33.5mm / 1.8in D20x77 35 x 91mm / 1.4 x 3.6in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 8in 33.5mm / 1.9in D20x100 35 x 114mm / 1.4 x 4.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 9in 33.5mm / 1.10in D20x125 35 x 139mm / 1.4 x 5.5in 55mm / 2.2in, 75mm / 3in, 100mm / 3.9in, 125mm / 4.9in, 150mm / 5.9in, 200mm / 7.9in 50mm / 10in 33.5mm / 1.11in Package List: 1 x Drag Chain