The 3854-piece app-controlled Cat D11 Bulldozer from LEGO Technic is a meticulously detailed replica of Cat’s biggest & baddest bulldozer. 10-inches tall, nearly 2-feet long & recommended for ages 18+, this 3-motor RC dozer uses LEGOs’ CONTROL+ app, allowing builders to drive and steer, then raise, lower and tilt the blade or raise and lower the ripper and ladder. Available October 1.