LiteXim LED Dog Collar Light Silicone USB Rechargeable One Size Fits All Waterproof Night Safety Pet Dog Collar One size fits all: Collar measures 70cm/27.55" - Can be cut to any length using scissors to fit your pet! It can be recharged via Micro USB cable - via Phone Chargers, Laptops, PC 3 Light Modes - Slow flash, quick flash & Steady glow (One Button Control) Waterproof - good for all conditions. Adjustable Length & Comply for your dog Light-weight,highly visible, multi-color for choice, recommend to use it as safety neck band that your dog wears over their regular collar