Features: LED light glows and flashes in darkness. Bright light can be seen from far away. 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. Also work as a decoration: let your dog more attractive. Easy and comfortable to wear and remove. Easy to use: simply pushing the control button makes the light ON/FLASH/OFF. Pet Bust Size: S: width 2.5cm shortest 35cm longest 43cm telescopic scope 8cm M: width 2.5cm shortest 40cm longest 48cm telescopic scope 8cm L: width 2.5cm shortest 45cm longest 52cm telescopic scope 8cm XL: width 2.5cm shortest 52cm longest 60cm telescopic scope 8cm Specification Power source: LED light Light color:red， blue， yellow， green， orange， colour， white， pink. Modes: Quick flash-slow flash-still on Battery: 2 * CR2016 button batteries (pre-installed) Note: This Item Can Be Removable and washable
