Children who love Monster Jam have lots to discover with this LEGO Technic Monster Jam Dragon (42149) 2in1 pull-back truck toys for kids age 7 plus years old. This toy truck model lets kids recreate favorite scenes from the Monster Jam arena. It’s time for kids to put their skills to the test with this LEGO Technic 2-in-1 Monster Jam set. First they build the monster truck toy with its fierce dragon spikes, horns and fiery details. Then pull back the motor to send it speeding along – or perform cool tricks like a real competitor! When it’s time for something new, kids can rebuild the truck into a Crocodile Monster Truck racing toy for even more fun! An easy and intuitive building adventure with the LEGO Builder app awaits. Here kids can zoom in and rotate models in 3D, save sets and track their progress. LEGO Technic buildable models feature realistic movement and mechanisms that introduce LEGO builders to the universe of engineering in an approachable and realistic way. Treat a fan of Monster Jam and off road vehicles to this LEGO Technic 2in1 Monster Jam Truck Toys set as a great gift idea for kids Ages 7+ years old. This set makes a great summer DIY building toy idea for outdoor play for boys and girls ages 7-11. This Monster Jam toy truck model measures over 4.5 in. (12 cm) high, 7 in. (19 cm) long and 4 in. (11 cm) wide. Contains 217 Pieces.