Building a robot that can move in any direction? These 64mm mecanum wheels are what you need. Each wheel has rollers set at 45 degrees, allowing your robot to drive forward, sideways, diagonally, or even rotate in place – super cool for advanced mobility. They're compatible with TT motors, N20 motors, and Lego-style servo motors (couplings included for TT and N20). Perfect for Raspberry Pi 4/3B, Micro:bit, or Arduino projects. The wheels are made of grey plastic, 64mm in diameter and 30mm thick. You get a set of 4 wheels plus the couplings, so you can build a full omni-directional drive system. Imagine creating a robot that can slide left/right, drift, or follow complex paths – these wheels make it possible. Great for STEM education, hobbyists, or competition robots. Assembly is straightforward: attach the couplings to your motors, mount the wheels, and program your controller. The compact design is reliable and looks pro. Whether you're a beginner or an experienced maker, these open up a ton of creative possibilities. Build something awesome that moves like nothing else!