Give Young Vehicle Fans A Treat With The Lego Technic Heavy-Duty Bulldozer (42163) Toy Set For Kids Aged 7+ Who Love Construction Toys. Inspired By Real Bulldozers, The Yellow Color Scheme Captures The Imaginations Of New Technic Builders, Encouraging Boys And Girls To Develop New Building Skills. Authentic Details Include The Tracks And The Blade, Which Kids Can Lift And Lower Using The Element On Top Of The Bulldozer. This Set Makes A Great Gift Idea For Kids Who Love Vehicles. Lego Technic Construction Sets Feature Realistic Details That Introduce Young Lego Builders To Engineering In An Approachable Way. Give Kids A Fun Building Adventure With The Lego Builder App, Which Lets Them Zoom In And Rotate Models In 3D And Track Their Progress. Contains 195 Pieces.