Look, your child is destined for greatness. We won�t dispute that. But why wait until they can walk for them to rock their awesomeness? If they�re crawling, they�re ready to explore the world. Attach the Base to a Strider 12 Balance Bike and get them rocking. The rocking base doesn�t just familiarize them with a bike, the rocking motion helps develop their balance, spatial awareness, and core strength. No batteries. No annoying sounds. Just pure, rocking fun.