Hey robot builders and STEM enthusiasts! These yellow mecanum wheels are seriously cool for creating robots that can move in any direction. Each wheel measures 60mm (about 2.4 inches) in diameter and comes with that distinctive diagonal roller design that makes omni-directional movement possible. Made from ABS plastic with rubber-coated rollers, these wheels provide smooth running and excellent grip. The package includes two pairs - two left wheels and two right wheels - specifically designed for TT motor couplings. What's amazing is how they enable four-wheel drive smart cars to perform movements you wouldn't believe - left and right translation, large-angle drifts, 45-degree diagonal movement, and even track-like motion patterns. The yellow and black color scheme looks sharp and modern, and the three-dimensional design gives them a professional appearance. Each wheel goes through three inspection processes during manufacturing, so you're getting quality-controlled components. Whether you're building industrial robots, educational STEM projects, or advanced DIY smart cars, these mecanum wheels open up a world of mobility possibilities. They're perfect for robotics competitions, maker projects, or anyone wanting to experiment with advanced movement systems. The construction feels solid, and the rubber coating ensures good traction on various surfaces. Setting up your robot with these wheels means you can program some really sophisticated movement patterns that will impress everyone who sees it in action. It's one of those components that takes your robotics projects from basic to advanced in one simple upgrade.