Includes a pair of 2 76mm Wheels with Fast Abec 9 Bearings | These Cheetah Ripper wheels are super easy to install and will fit on almost every caster board | Cheetah Rippers are made of Super High Rebound 89A Urethane which offers a combination of maximum durability and performance | Rounded Profile and Super High Rebound Urethane creates less friction allowing for faster speeds and better control | Abec 9 bearings offer the highest amount of precision, speed, and durability in caster board replacement bearings. Increase your speed with Abec 9 Bearings!