... accepted8-CE&ROHS certified9-Samples are offeredLED badges (LED blinking badge, flashing pins, flashing badges),When the turnbuckle is screwed up ... diameter flashing pin 3.Material:plastic ,tin,led lgiht4.Offset print : full color5.Battery:2pcs6.1-3 pcs of flashing lights7 ... want.5,The material of them are environment friendly.Flashing badge is best for discoes, night clubs, parties, bars, promotions, ...