Bones 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 other skateboard bearings in their price range, so let the good times roll with Bones REDS.? Pre-Lubricated with Speed Cream Easy Cleaning & Re-Lubricating Removable High Speed Nylon Ball Cage Non-contact, Removable Rubber Shield Bones Skate Rated Design & Quality