If you require a certain product to keep yourself and your pet safe in the dark at night, when you are out walking your dog for example, then why not buy one of these very good products.New Red Bone Collar Safety Flasher - Very attractive bone shaped designSimply attach the light to your dog or pets collar and flick the switchLight uses 2 ultra bright super LED's which can be seen up to 1/2 a mile awaySize : 4.5 x 3 x 1.8 cm - LR44's batteries includedThese are great for the winter nights to make sure you and your pet are seen and kept safe