Led Pin with Bottle Shape: 1. Material:PCB. 2. Battery operated and included 3. Any size are available. Led Pin with Bottle Shape:1. Material: PCB with safety pin ... the screw is loosened.Customized logos and shapes are welcome.Packaging: EVA package.Led Pin with Bottle Shape, Pin Badge Gift, Flashing Button, Light ... , Led Gift, Valentine's Day Gift, Promotion Gift. Led Pin with Bottle Shape