All wheels are 1st quality. No seconds.

Some wheels may be discolored due to their age. This is not considered a defect, but just a natural effect of aging. It does not affect the quality or the performance of the wheel.

Durometer numbers are a measure of the hardness of a wheel. The numbers range from 78A to 101A. The higher the number, the harder the wheel.

Four wheels are needed for a complete skateboard. They are sold as each, so if you need 4, order 4.

White wheels & natural wheels. Wheel manufacturers label them one or the other. They are the same. White/natural wheels fade more than other wheels and may be quite discolored.