Bones Swiss Skateboard Bearings 8 Pack Eight-pack of chromium skateboard wheel bearings with four bearing spacers, instructions, and a sticker Precision-grade Swiss design and manufacturing acclaimed for 25 years Nylon ball retainers and Bones Speed Cream lubricant for a sustained ride Removable rubber shields make cleaning a snap Skate Rated for better performance than any ABEC rated bearings; lifetime warranty against manufacturing defects