The innovative design makes this light a must-have accessory for your favorite canine hound puppy to full-grown as well as outdoor enthusiasts. Perfect as a dog light collar for night walking to boat, kayak lights for night kayaking and fishing. Its unique durable and completely waterproof design features a durable silicone band that wraps securely around any collar, leash, harness or outdoor gear such as bicycles, scooters, jacket zippers, kayaks, and camping gear. OUTDOOR DOG ACTIVITY READY: 100% waterproof design and super bright light make this LED an essential gearlight for any adventure. Better than typical illuminated light up dog collars, led tag clip lights and reflectors, our durable sporty silicone band attaches securely and stays in place to most collar sizes, leashes, harnesses, bike trailers, baskets and directs light beam as needed for maximum safety. DESIGNED FOR EXTRA SAFETY & PLAY: Bright LED is easily seen and can be placed securely and aimed where visibility is needed dawn to nighttime. Lightweight sleek design is non-invasive, NO hanging or swinging movement from collar, leash or carabiner means more visibility and consistent light for safer pets and owners. ONE SIZE FITS ALL: Durable stretch design fits on most small, large, thin and thick dog collars as well as pet harnesses, leashes and other outdoor walking gear. Using high-specification and large-capacity rechargeable lithium battery, enhanced battery, long-lasting battery life, 900 minutes of battery life after 45 minutes of charging. Widely used and perfect gift - This dog collar light is perfect for cats and dogs to play and walk at night, protecting them from harm.