The LumiPaws LED dog collar keeps your dogs visible and most importantly SAFE in the dark. Features: Weatherproof, USB rechargeable, high visibility, and durable. Perfect for dogs of all sizes ( Small, Medium, Large, X-Large). Specification: Colors: Blue / Red / Green / Pink / Orange / Black 3 Flash modes: Fast flash, slow flash, constant glow. Included in package: 1 x LED dog collar and 1 x USB charging cable Customer satisfaction is our top priority. Please feel free to contact us, if in need of assistance or support.