The Lumitube collar is available in two lengths and the tubing can actually be cut to size creating the perfect fit for any dog. Quick release connectors allow the collar to be assembled and disassembled in seconds and, when fitted correctly, the Lumitube should slip on and off a dog’s head without needing to undo the loop. The Lumitube collar is powered by just one AAA battery, which is included, and replacements are inexpensive and widely available. Also, The Lumitube Illuminated Safety Collar is waterproof so nocturnal adventurers can indulge in a spot of night swimming without their owners losing sight of them. The brilliant Lumitube is lightweight and contains two powerful LEDs, which create an ultra-bright, even glow around the whole neck. This gives superb 360-degree visibility, unlike flashing collar attachments that are only visible from the front. The Lumitube collar is 100% Waterproof, available in two lengths and the tubing can actually be cut to size creating the perfect fit for any dog.