Let Monster truck fans recreate their favorite arena moments with the LEGO® Technic™ Monster Jam® Max-D® (42119) toy building kit.Two building challenges! This cool Max-D® 2-in-1 monster truck toy rebuilds into a pull-back quad bike, so playtime lasts even longer.With pull-back action, it's easy for kids to power their truck and quad bike. Simply pull back and let go to send them speeding along.Looking for hot toys for kids who love monster trucks? This buildable model set is ideal for boys and girls aged 7 and up who love exciting vehicles.Details include Max-D®’s iconic spikes and a rough metallic surface with fire graphics just like on the real truck.Monster Jam® truck toy measures over 4 in. (10 cm) high, 10 in. (25 cm) long (with flag) and 4 in. (11 cm) wide.Instructions for the Max-D® model are included, plus digital Instructions PLUS are available in the free LEGO® Building Instructions app. Instructions for the quad bike are available online.The LEGO® Technic™ universe offers advanced buildable models for young LEGO fans ready for their next building challenge.LEGO® components meet stringent industry standards to ensure they are consistent, compatible and connect reliably every time – it’s been that way since 1958.LEGO® Technic™ components are dropped, heated, crushed, twisted and analyzed to make sure they meet stringent global safety standards.