Affordable bearings with ultimate-bearing quality! Get the most speed for your buck with the Pig Speedstars Bearings. Features include: Heat treated, impact resistance black delrin crown for strength, high impact, and side loads. Lubricated in high quality Teflon Oil that doesn't break down for maximum speed and the longest lasting, fastest bearing right out of the package. Free bearing spacers to protect bearings and wheels. Chrome dipped non contact crimped silver shield polished to new tolerances for mass speed. Polished ball bearings. Set of 8. Includes bearing spacers and Pig sticker.