Bones REDS are manufactured in China to our 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 performance close to Bones Swiss at a fraction of the cost, they have become the best-selling bearings.Features: Unique, non-contact, removable rubber shield, for easy cleaning and less friction. High speed nylon ball retainer for added strength and speed. Pre-lubricated with Speed Cream racing lubricant. Skate Rated approvals, tolerances, materials and lubricants They provide the best possible performance and durability.