The AndyMark 4in. Compliant Wheel 1/2 Hex, Durometer 40A is designed for the manipulation of rigid objects rather than robot mobility. It is part of a system that uses multiple wheels on a driven hex axle to create an efficient roller, capable of handling variations in the objects being moved. This wheel is characterized by its 40A durometer rating, offering a balance between compliance and firmness, suitable for high-performance intakes and conveyors. The wheel is constructed from TPU and polycarbonate materials, ensuring durability and reliability in various applications.