... . Size: 60mm(L)*40mm(W)*15mm(H). 3. Material: Plastic. Sport Gifts, Promotion Gifts, Glow Mouth Guard:1. Size: 60mm(Length ... led included one red, one blue, two yellow.5. Power supply by three cell battery.6. Bring more fun to music ... concert, parties, disco, festival, etc.Sport Gifts, Promotion Gifts, Glow Mouth Guard. Sport Gifts, Promotion Gifts, Glow Mouth Guard