This set of 4 LEGO tires and wheels (part number 68.8 x 36) is perfect for anyone interested in LEGO Mindstorm and Technic building. The black and gray color scheme fits in with any design, whether you're building a car or a robot. Made out of sturdy plastic material, these tires are durable enough for kids ages 4 and up to enjoy. The MINDSTORMS EV3 LEGO set name is a well-known brand among those interested in STEM, robotics, and coding. This set of wheels and tires is sure to enhance any LEGO creation, and it's a great addition to any builder's collection. Whether you're building a vehicle or a robot, these LEGO tires are sure to take your creation to the next level.