Inspire kids who love Monster Jam to build their very own monster truck with this LEGO Technic Monster Jam Max-D 42119 building kit. With its pull-back action . boys and girls will be recreating daring stunts from the Monster Jam arena in no time. The 2-in-1 toy truck is packed with powerful features . just like the real thing. Check out the authentic graphics and colors . spikes and movable flag. This cool Monster Jam truck toy offers two building challenges in one. After building the Max-D model . kids can rebuild it into a quad bike for even more high-speed adventures. Check out the free LEGO Building Instructions app to find Instructions PLUS. This interactive guide makes building easy with zoom and rotate tools. The LEGO Technic universe offers a great introduction to engineering and mechanics for young LEGO fans. With detailed models . inspired by real-world vehicles . kids learn as they play.