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Good quality Keychain Necklace - LED Flashing Pins – Sjj
LED flashing pins are a great giveaway item for any holiday, events, concerts, fairs and anywhere. Custom designed PCB board LED flashing lights can be applied on any kinds of custom pins, no matter die struck or die cast pins, especially on offset printing and photo etched lapel pins. Flashing pins can include several LED lights in just one pin, the LED lights can blink in same time, or blink in turns, just press the button on the backside of lapel pin to turn on & off the LED lights. Ba...
