The LEGO Nintendo Super Mario Bowser’s Muscle Car Expansion Set 71431 is a plastic building toy set from LEGO's Super Mario theme. This expansion set includes 458 pieces to build Bowser's Muscle Car, featuring the iconic character Bowser from the Super Mario franchise. With a release year of 2024, this set is suitable for ages 8 and up and comes in a box packaging. The set dimensions are 10.95 inches in length, 8.27 inches in height, and 9.13 inches in width, offering a fun and creative building experience for LEGO enthusiasts.