The Reznor Knockdown Expansion Set (71390) is the perfect addition to the LEGO Super Mario universe for kids who love excitement! This set includes buildable rotating platforms that spin by turning LEGO Mario and/or LEGO Luigi on the connected stand, as well as a Skewer to knock off the 2 Reznor figures from the platforms and rescue Blue Toad from the top. In addition to the fun challenges, there's also a seesawing Grrrol, ? Block, and a Special Pipe: Speed Run for speed challenges. This 862-piece toy building set makes a great birthday or holiday gift for kids aged 8 and up who already own a LEGO Super Mario Starter Course (71360 or 71387). Kids can play solo, team up, or even compete against friends who have their own LEGO Mario or LEGO Luigi figure, using the free LEGO Super Mario app for building instructions, and creative inspiration. Collect all the LEGO Super Mario toy playsets including the Starter Courses and Expansion Sets, plus Power-Up packs, to make endless unique levels in this exciting universe.