MegiPet&reg; TM Set-4PC Pet Dog Puppy LED Light SignatureTags Flasher Blinking Led Bone Shape Pet Safety Collar Easily spot your pet when out in woods or fields, make sure your pet's safe in the dark Cute bone shaped design with a keychain It has 2 bright led lights and the tag is visible up to 1/2 a mile away Package Include 4pc pet dog puppy bone collar: 1pc blue, 1pc green, 1pc yellow and 1pc red Easily replaceable batteries included,can replace the battery easily after running down of battery