Ergonomic and Comfortable Design: 360 ° leash, does not tangle, gives your pet more freedom of movement without obstructing the leash. : 3M is suitable for 15-20 kg competitions and 5M is suitable for 25-50 kg competitions. Durable: This retractable belt shell is made of high quality ABS and TPR material to prevent the shell from sagging. break in the event of an accidental fall. A strong spring can retract the dogs leash smoothly. Improved locking system: Brake, lock and lock knobs ensure that the band can be easily retracted. Press the button brake button to lock the belt. Return to free state. LED system: Cool LED lighting system, it is safer to use LED lights for your dog at night. A key for lock and unlock, press the button, then push forward to stop the belt. Various colors and lengths Brightens up roads at night and in dark places Anti -knots 360 degree rotation system to avoid knots with LED belt ignition button One-click opening and closing of the nylon belt Easy to remove and reconnect hooks, high quality nylon straps. Color: black and white Size: 5 meters Delivery quantity: 1 piece.