DFRobot Black Mecanum Wheel with Motor Shaft Coupling is an omnidirectional wheel designed for a land-based vehicle to move in any direction. These directions can be to go straight, obliquely, horizontally, S-line, and rotate at any angle with zero radii. The black mecanum wheel with motor shaft coupling offers low noise that allows the wheel to move stably and flexibly during operation. This mecanum wheel has a diameter of 60mm and is composed of 9 small rollers. These rollers are made of plastic and coated with quality and high-friction silicone rubber that are rugged and impact-resistant.