Take your dog on a fun, yet safe stroll at night with this Nite Ize NiteDog rechargeable LED collar. Optical fiber technology and two LEDs deliver a high-powered glow or flash for maximum visibility, while the buckle-styled closure lets you make quick, easy adjustments to fit large and small dogs. This Nite Ize NiteDog rechargeable LED collar is water-resistant for added durability.