Swiss+Tech ST13035 Blue Pet Collar and Leash Light Set Blue pet collar and leash light set Leash light attaches to your standard leash with the integrated metal spring clip or can be mounted to the side of a cord reel leash with the included hook and loop tape Collar light attaches with hook and loop tape around your pet's collar Bright white LED light for collar light and 5 bright LED lights for leash light Includes 2 replaceable batteries and 3 button cell battery