Toy Cubby Light-up Flashing Glowing LED Spiky Jelly Crystal Necklace - 12 pcs 12 pieces Flashing Jelly Crystal Necklace. Necklace are made of soft stretchable materials that are safe to play and also equipped with blinking LED that can light up all night long and surely this will be loved by the kids, comes in different colors - Green, Red, Yellow and Blue. Easy to operate by pressing the switch inside the jelly pendant to turn the light on and off Perfect for for any kind of themed party, carnival, night camping, rave party, Halloween and Christmas and also serves as a filler. Necklace fits well in kids and adults. Batteries included.