Tires and Wheels Pair of (2) Merits Wheelchair Caster Tires 8 X 2 Review Posted on July 27, 2018November 7, 2018Author Marauderby This listing is for Pair of (2) Merits 8″ X 2″ Caster Tires. Light gray urethane 2-3/8” 5/16” precision bearings.