Zehui New Nylon LED Dog Night Safety Collar Flashing Light up W/circular Pendant Collar LED light glows and flashes in darkness. Helps to keep you and your dog & other pets safe during walking. Provide safety for your dogs and pets while it's out alone at night. Easy to use: simply pushing the control button makes the light ON/FLASH/OFF. Pet Bust Size: 45-52cm Width: 2.5cm