Bones Super Reds were developed to be an affordable alternative to Bones Swiss. They feature ground and superfinished chromium steel balls and races, a high speed, removable nylon ball retainer, Bones Speed Cream lubricant and a removable, non-contact, frictionless red rubber shield. This combination of Skate Rated™ design, quality components and careful quality control makes them faster, smoother and longer lasting than many other skateboard bearings in the same price range,