Bones Reds Precision Skate Bearings With Mob Skateboard Grip Tape Sheet Black 9" Bubble Free The bestselling skate bearing brand in the USA, Bones REDS are manufactured to Bones Skate Rated specifications in a manufacturing facility dedicated to producing the highest quality skate bearings. Hundreds of barely-visible perforations that allow air to escape for a bubble-free application. Exclusive silicon-carbide grit binding process for grip that will not wear out. High-strength, waterproof, tear-proof backing that trims cleanly every time. Super sticky adhesive that won't peel in extreme heat or cold.