Bones Super Reds Skateboard Bearings 8 Pack Features Higher quality steel races, better quality and grade balls, and a superior surface finish Single, non-contact, removable rubber shield for easy cleaning and less friction. High speed nylon ball retainer for greater strength and speed. Pre-lubricated with Speed Cream racing lubricant Skate Rated clearances, tolerances, materials and lubricant provide the best performance and durability possible.