Let your little builder’s imagination run wild with these construction vehicle take-apart toys, perfect for boys aged 3–6. These DIY cars encourage problem-solving, fine-motor skills, and STEM learning as kids screw, unscrew, and rebuild their own trucks. Great as a birthday gift, this set is fun, educational, and hands-on — especially at the deal price of $9.99, down from $29.99. For more variety, check out options like Toyshine DIY Construction Engineering Car Set or MUMMAMIA 4‑Pack Take‑Apart Construction Vehicles — all designed to make learning through play a blast.