Our Pet Safety Lights give you the peace of mind your pet(s) are safe and visible outside in the yard or field or simply during night time walks. They are as easy as 1,2,3. Simply attach safety light to pet(s) collar or leash and activate by twisting clockwise. To deactivate, twist counter-clockwise. These durable, super bright Pet Safety Lights are available in fun color combos: Red+Blue and Jade+Yellow. Ideal for multiple pets! Rest assured your pampered pooch will be visible at least 1/2 mile away. In addition, Flipo's Pet Safety Lights are 100% waterproof. The easily replaceable batteries will allow up to 96 1-hr walks or up to 96 hours of continuous use. As a bonus, each Pet Safety Light includes one extra set of 3 batteries. Fits all size dog breeds. Ideal for cats also.