With vehicles that look and function like the real thing, LEGO Technic buildable models offer a fun introduction to engineering and mechanics for young LEGO fans. Download the LEGO Builder app and step into a new world of building fun where kids can zoom in and rotate models in 3D, save sets and track progress.A monster truck model build – Kids can build and race this LEGO® Technic™ Monster Jam™ Monster Mutt™ Dalmatian (42150) toy truck. With pull-back action, this 2-in-1 toy offers hours of playInspire arena adventures – Kids use the pull-back feature to send the model truck racing along before recreating cool monster truck tricks as seen in the Monster Jam™ arenaTwice the fun – Kids can enjoy a new challenge by rebuilding the Monster Mutt™ Dalmatian into a Race TruckMonster Jam™ graphics – Comes with sticker details designed to delight Monster Jam fansFor kids aged 7+ – This monster truck makes a fun birthday, holiday or anytime gift for Monster Jam™ fans and offers an introduction to engineering for kids who love building toysSized for play – This Monster Jam™ truck model measures over 4.5 in. (11 cm) high, 7 in. (19 cm) long and 4 in. (11 cm) wide