Pull it back to get it ready and then when you release the school bus, it zoom onto the floor all on their own. toddlers, preschools, kids will go crazy over this pull back vehicle set. The body is open for young ones to load up the bus with any passengers play figures they want before rolling straight into playtime excitement. Just pull them back, let them go and watch them fly across the space! Fine motor skills and imagination roll into play! Made of premium quality metal & child-friendly ABS materials, sturdier & highly durable. Exquisite exterior & interior makes the pull-back vehicles an exciting playtime experience for early explorers, an ideal gift choice for Christmas, birthday party, party favors and any gift-given occasions. Suitable for 3+ boys & girls. Conforms to US toy safety standards.