... PCB. 2. Size: 3cm-5cm. 3. Color: Red, blue, green. Halloween Gift, Christmas Gift, Led Pin Button: 1. Material: ... Stop flashing when the screw is loosened.6. Red, yellow, orange, blue jade and white led ... Customized logos and shapes are welcome.9. Packing: EVA.Halloween Gift, Christmas Gift, Led Pin Button, Light up ... , Led Badge, Pin Badge, Pin Button. Halloween Gift, Christmas Gift, Led Pin Button