1. LED Key-chain lights for pet is used as a Flashing Pet Necklace , which is hung on the neck of the pets .

2. Small and novel , powered by 3PCS AG3 lithium batteries .

3. Can flash in three flashing styles : fast-flashng , slow-flashing and stay on

4. Many colors for the LED lights are available

5. Waterproof , it's the best partner for pets .