Blokko Light Up CopterYour childs creativity will soar to new heights with these exciting building blocks that feature sparkling LED lights. Each set includes everything needed to build 3 different models, or you can build your own designs from scratch. Two separate blocks add bright, colorful light to their colorful creations. Blocks fit with other building block kits. Includes button cell batteries. Plastic and LED. Ages 6+. Copters (49 pieces).