Features 1. Made from premium plastic material, which is durable and long-lasting, not easily damaged by pets. 2. Uses high-intensity LED lamp, with visibility up to 5 meters in the dark. 3. Uses advanced lens, high light transmission, wide-angle visibility up to 270 degrees. 4. Simple stretch design, can be easily stretched over your pet's collar or harness, convenient and quick. 5. With high-precision waterproof design, it can be used normally even on rainy days. Specifications Product Type: LED Lamp for Pets Material: Plastic Purpose: Pet Safety Warning Battery: 2 x CR2032 button batteries, 240mAh (built-in) Size: Approximately 3 x 3.5 x 4.4 cm Diameter: Approximately 3 cm Usage 1. Turn counter-clockwise to open Turn clockwise to close 2. Flashes when the battery's positive pole is down Normally on when the battery's positive pole is up Packing List 1 x LED Lamp for Pets