Check the listing for details. TWO 6" x 1.5" Quickie Wide PRIMO TIRES Ki Wheelchair Front Wheel Caster 5/16" ID. Color: Black, Condition: Open box. Listed at 25.00 USD. TWO Primo 6" casters (they are called 6" but actually measure about 5-3/4") ~PRICE IS FOR 2 WHEELS~ 3-spoke black molded wheel Rim with convex 1 1/2" black urethane tire. 1" hub Width 5/16 Bearings Tires are 1.5" wide Fits Invacare, Quickie, Tilite, Ki Mobility, and Others Low rolling resistance as well as better flotation characteristics on soft earth or carpets Non marking polyurethane tire. If your not sure this the correct size you need or if your looking for other Parts send us a message.TWO Primo 6" casters (they are called 6" but actually measure about 5-3/4") ~PRICE IS FOR 2 WHEELS~ 3-spoke black molded wheel Rim with convex 1 1/2" black urethane tire. 1" hub Width 5/16 Bearings Tires are 1.5" wide Fits Invacare, Quickie, Tilite, Ki Mobility, and Others Low rolling resistance as well as better flotation characteristics on soft earth or carpets Non marking polyurethane tire. If your not sure this the correct size you need or if your looking for other Parts send us a message.