Safety and Quality ControlMade of safe and environmental materials, round edge design will provide maximum security for your kids. All accessories are strong and durable, the screws and wrench tools just fit kids hand,suitable for kids age 3 and up.Recommended as a skills training children age 6 and up and like hands-on activities. Super Value SetOur construction truck toys includes 1pcs screwdriver and four different type take apart engineer series: Excavator, Loader, Road roller, Drilling rig. Build early leaning skillsEndless hours of taking it apart and building something new. Perfect for eye, hand and brain coordination. Teaching kids to be patient and see what kids can create. Improve the ability of operation and independent thinking. Take apart and assembleJoyGrow take apart truck set are pre-assembled and can be disassembled with a screwdriver. This gives children the opportunity to participate in imaginative and engaging games. Perfect gift for boys and girls4 pieces take apart truck packed by a storage box ,easy to bring outdoor,bring more fun to kids play.Perfect gift for holidays,birthday or festival (Christmas, Halloween, Thanksgiving, Birthday,New Year).