ANTIFURT ACID CABLE EXTENSION PRO 150 Negru Chain extension for added protection in combination with an existing bike lock. With super practical touch fasteners at each end and low-noise 6mm chain links. Ideal for securing additional bikes, mounted parts and accessories. extension chain; low-noise; tested for mechanical strength; wear-resistant; certified pollutant-free; corrosion-protected; plastic covers protect the frame from scratches size (DxL) 6 x 1500 mm material steel, plastic