SupaFly Alpha Aggressive Skateboard Longboard Roller Skate Bearings &shy; Set of 8 - with Bonus Metal Carrying Case EASY CLEANING: Single, NonContact, Removable Rubber Shield for Easy Cleaning and Less Friction. Fast Roller Skate Bearings, Long Lasting, phoenix bearings HEAVY DUTY & HIGH GRADE BEARINGS : Inline & Roller skate bearings nylon cage for Impact resistance and durability for Skateboard bearings. ABEC 7 Providing Overall Better Durability, Speed, Strength, and Longevity INDUSTRIAL GRADE LUBRICANT : Phoenix Skate Bearings for Prelubricated with industrial grade lubricant. GCR15 BALL BEARING STEEL: Roller Skate Bearings Providing High Speeds with Low Noise, and Less Friction, longboard & bearing lube for greater strength and speed BEST GUARANTEE - 100% satisfaction or your money back. Fast and easy customer service with Roller Skate Phoenix ball bearings improve performance guaranteed.