STEM Building Toys For Kids Ages 8-12 - Our construction building toy is perfect for kids 8 and up, with 256 pieces like nuts, bolts, screwdrivers, and wrenches, all made of strong metal. When they're done building, the swing arm can swing freely and the bulldozer can slide a long way with just a little push. This stem building toy makes engineering and science fun and interactive, helping kids develop their STEM skills.

Easy Instructions - We've created clear instructions with step-by-step pictures, so kids can follow along easily without getting frustrated. The wrenches and screwdrivers are also included to make it easy for them to assemble the parts.

Hands-On Learning - This bulldozer model requires kids to think carefully and be patient while building. The 4-hour building process helps develop their hands-on skills and creativity.

Metal Made & Bigger Size - Our excavator building toy is made of metal, making it sturdy and durable once built. It's a big model, measuring 6” H × 6.7” L × 4.3W, making it a great display piece. It's an essential part of any engineering or construction series.

Safe For Kids - We've chosen high-quality materials with a smooth surface, making it 100% safe for kids. It's perfect for 8-16 year old boys and girls and makes a great surprise gift for any STEM enthusiast.