Oajen 2" 50mm chair caster wheel, 7/16" x 7/8" 11mm x 22mm grip ring, pack of 5, iCaster, green clear body Oajen 2" 50mm chair caster wheel, 7/16" x 7/8" 11mm x 22mm grip ring, pack of 5, iCaster, green clear body Hard nylon wheel. Caster body is clear, wheels are solid color. Stem and axle are lubricated to provide years of service. 5 casters / pack. Exceeds BIFMA quality. Made in Taiwan.