Halloween Gift, Christmas Gift, Led Pin Button: 1. Material: PCB. 2. Size: ... Red, blue, green. Halloween Gift, Christmas Gift, Led Pin Button: 1. Material: PCB.3. Size: 3cm-5cm. ... product begins to sparkle with diversified light.5. Stop flashing when the screw is loosened.6. Red ... Gift, Christmas Gift, Led Pin Button, Light up Pin, Light Button, Led Badge, Pin Badge, Pin Button. Halloween Gift, Christmas ...