1.environmental protection 2.lower price 3.best service and quality 4.quick delivery 5.you can own design and logo on LED promotional necklace , led necklace , flashing pendant , light up necklace , blinking necklace , promotion gift, blue led flashing necklace1. It can be used as the promotion gifts , as well as , good decoration at a club, party, dancing...2. Different shapes are available: ...