This 4-in-1 ride on push car converts by hand with no tools between a ride on with trailer a plain ride on a baby push walker and a parent-guided car so it keeps pace from 18 months to age 5. A blocking tab a 50-degree steering limit and a widened low base hold riders up to 45 lb steady through turns. Fully enclosed wheels roll across carpet tile hardwood cement and rubber matting. One button plays ten songs on 3 AA batteries and storage sits both under the seat and inside the trailer. Molded PP wipes clean and meets ASTM and CPSIA standards.