Mikuni Set of 4 Blue Tires Shower Chair, Shower Carry Blue 4-spoke design plastic wheels, perfect as parts for nursing care bath chairs. - Size (amateur measurement) Plastic diameter: approx. 23 cm Tire diameter: approx. 30 cm - Color: Blue - Shape: 4-spoke design - Material: Plastic - Application: Parts for nursing care bath chairs This listing is for the four tires only. No other items are included. Used, so there may be dirt and scratches.