8mm ID bearings are a versatile size with lots of uses including skateboards and inline skates. Bones REDS are manufactured in China to Bones Skate Rated specifications in a manufacturing facility dedicated to producing the highest quality skate bearings in China. They are inspected twice before being shipped to skaters and offer the greatest combination of performance, durability and low cost in the industry. Because they offer near Bones Swiss performance at a fraction of the cost, they have become the best selling bearings. Includes 16 Bearings (Enough for 8 Wheels). If purchasing for inline skates, ensure you save existing spacers or purchase new ones that are compatible with your skates.