All-round Protect Pet: Clip on Dog Collar safety light is designed to keep you and your pet safe - Visible for more than 1/2 mile, all-weather dog collar charm or dog collar light for when your pup is playing out in the dark. Long-lasting Illumination: LED clip on light handy whenever you need to light your way through the dark. A quick and easy attachment and bright, long-lasting light make it a staple for everything from daily life to overnight adventures. Multi-Use: Dog collar lights is lightweight and water resistant clip light. When you are camping - like for your keys or keyhole, backpack, tent or Mountain bike and so on. Easy To Use: Long lasting,durable, clip light features a secure stainless steel spring clip carabiner attachment, 3 Settings - Steady On, Flash, Off, by pressing center. Notes; please do not forget to change battery when the LED light can not light. Item Name: Pet Collar Lights; Material: Plastic; Main Color: Green, Blue, Orange, Yellow, Pink, Red; Size One(Diameter): 3.1cm / 1.22"; Size Two(Include Button): 5.5 x 2.0cm / 2.17" x 0.79"(H * W); Battery: CR 2032 Lithium Cell; Weight: 180g / 6.35oz; Package Include: 6 x Pet Collar Lights.