This Blue D65 wheel set is now discontinued. We suggest our best - selling Wheels and Casters as a great replacement. The set includes a pair of Blue D65mm (2.56') rubber wheels, two specific adapters, and two micro DC geared motors. These are widely used in our 4WD and 2WD platforms such as Turtle (2WD Arduino Mobile Robot Platform), Pirate (Pirate - 4WD Mobile Platform), and Baron (Arduino Mobile Robot Platform with Encoder). DOCUMENTS: Dimension. SHIPPING LIST: 1 pair of D65mm Rubber Wheels - Blue (without shaft)(FIT0199 - B), 2 Micro DC Geared Motors with Back Shaft (FIT0016), 1 Wheel - Motor Adapter (FIT0198).

Using this wheel set is easy. First, attach the wheel - motor adapters to the micro DC geared motors. Then, fit the blue rubber wheels onto the adapters. You can use these in your 2WD or 4WD platforms like the Turtle, Pirate, or Baron. When using, make sure the motors are connected to a proper power source. Avoid overloading the motors as it may damage them. For maintenance, keep the wheels clean from dirt and debris. Check the connections regularly to ensure they are secure. If you notice any unusual noises or issues, stop using the set and check for problems.