Transform your child's Strider Bike into the perfect training, rocking-horse bike with the Rocking Base. Made from durable plastic, this base is designed to work with Strider Bikes only, turning them into fun, low-to-the-ground, indoor rocking bikes for your baby to elarn the ropes on. It installs in seconds, requires no batteries, and won't make any annoying sounds as your child has a blast.