Sonic the Hedgehog building set for kids – This Knuckles vs. Dr. Eggman Egg Crusher Mech building toy for 8+ year old boys and girls inspires fun stories with multiple play options and 2 characters Dr. Eggman toy mech to build – This gaming toy for kids features a posable mech, a hoverboard, a catapult with 2 boulders, 2 Chaos Emeralds plus Knuckles and Dr. Eggman characters Hands-on brick-building fun – The posable mech toy has a 6-stud rotating launcher, giant spinning claw and articulated limbs to inspire play, and it’s easy for young gamers to take on playdates LEGO mech adventures – Also includes a catapult with terrain that launches boulders with a lever push, letting young fans of Sonic toys play out endless action with Knuckles and Dr. Eggman Gift idea for gamers – A fun gift for 8+ year old boys and girls, featuring Knuckles, Dr. Eggman and a mech for kids who love gaming, hands-on building toys, LEGO bricks and Sonic figures A fun way to build – The LEGO Builder app guides kids on an intuitive building adventure where they can save sets, track progress and zoom in and rotate models in 3D while they build Creative LEGO building sets – The LEGO Sonic the Hedgehog playsets introduce kids to fast-action fun and imaginative play with different characters and story possibilities in each set, Manufacturer: LEGO