About this item CARABINER CLIP LIGHT FOR YOUR DOG - This push button light attaches easily to your pet's collar using the integrated stainless steel carabiner, making your four-legged friend instantly visible REPLACEABLE LONG-LIFE BATTERIES - Included lithium 2016 batteries last up to 20 hours and can be easily replaced for use over and over again CHOOSE YOUR COLOR OR ENJOY COLOR-CHANGING DISC-O - This unique model uses Disc-O Select technology which lets you choose from 6 different colors with the press of a button, or to leave the light cycling through Disc-O mode PUSH BUTTON ON/OFF - Easily activate the SpotLit with a push, and save the batteries by turning it off the same way. You choose your color in the first cycle of Disc-O mode using this same button BUILT TO WITHSTAND THE ELEMENTS - The SpotLit is weather-resistant and has a durable stainless steel carabiner, so it can withstand even the rowdiest mud-loving pup's shenanigans WORRY-FREE GUARANTEE - all Nite Ize products are backed by our Worry-Free Guarantee