• Monster truck gift – Kids can build and race this LEGO Technic Monster Jam Dragon (42149) toy truck. With pull-back action, this 2-in-1 toy gives them hours of play• Designed for role play – Kids use the pull-back feature to send the truck racing along before recreating cool monster truck jumps and tricks• 2-in-1 toy – When they’re ready for a new challenge, kids can rebuild the model into a Crocodile Buggy with pull-back action• Dragon graphics – Kids can decorate their Monster Jam truck with sticker graphics that recreate the design of the real-life Monster Jam truck• For kids aged 7+ – A great introduction to building and engineering for young Monster Jam fans. Makes a fun birthday, holiday or anytime gift for truck fans• Sized for play – This Monster Jam truck model measures over 4.5 in. (12 cm) high, 7 in. (19 cm) long and 4 in. (11 cm) wide• A helping hand – Discover intuitive building instructions in the LEGO Builder app, where kids can zoom in and rotate models in 3D, track progress and save sets as they develop new skills• An introduction to engineering – LEGO Technic buildable model sets feature realistic movement and mechanisms that introduce young LEGO builders to the universe of engineering