The Perfect Fit 4-in-1 Trike grows with your child! First, the parent pushes and steers; but, as the child grows, the parent can steer while the child pedals. When toddlers learn to pedal the bike, parents can remove the waist bar and now the child can steer. Last stage is when the child pedals and steers all on their own! The only Trike on the market with a fully adjustable seat that adjusts with no tools!