Design for children aged 3-9, the music car toy help toddler develop motor skill and preschooler learn social cooperation through interaction response simulation Use child safe, this set includes 4 small policeman vehicle with functional door and a music button on the main carriers truck, requiring nobatteries for friendly play The truck cab and downward sliding car ramps mechanism add operational realistic, while smooth edged construction ensures safe handling during energetic play with multiple vehicle The 5in1 policeman Car Toy Set features friction powered vehicle with realistic light and sound effects and a detachable carriers truck, fostering imaginative play while teaching teamworks through rescued roleplay scenarios Perfect for group activity in kindergarten, family storytelling, or roleplay scenarios recreating policeman rescued work with flashing light and sound