Led Dog Collar Battery Operated Makes Your Dog Visible Safe & Seen Product descriptionMaterial: nylonColor: blackS: width 2.5 cm, short 35 cm, length 43 cm, telescope area 8 cmPackage Contents: 1 * LED pet light collar1. Dog light collar with LED lighting Dog light collar is made of sturdy nylon and LED lighting, dogs are easy to see in the dark and protect them. This led collar can provide visibility up to 500 meters. This led collar is very necessary for dogs or cats.2. Illuminated collar with 3 LED modes Easy to adjust by pressing the button and freely switch between the three modes: fast flashing, slow flashing, quiet lighting and switch-off.3. Battery Operated Battery: 2PCS CR2016 button battery drive for 20-30 hours, normal use for 1-2 months; the battery can be replaced by yourself, and is available in convenience stores or supermarkets(not included). 4. Luminous dog collar with adjustable size Easy to carry with a quick release buckle and the length is adjustable. Please measure your dog's neck circumference with a soft tape measure to choose the right size. Always allow your dog enough air to breathe.5. Durable & waterproof luminous collar dog Light and strong nylon band, extremely robust. The LED lighting pet collar is water-repellent and mold-resistant. Note: Please close the rubber stopper after charging, otherwise it will not be waterproof.