These are hula hoops used in certified Rhythmic Movement Research Center classrooms. Retail price: 1,500 yen per hoop Red, blue, yellow, and white, 2 of each color Total of 8 hoops. Size: Outer diameter: approx. 72cm Inner diameter: approx. 68cm *Please allow for slight variations due to amateur measurements. There is some fading. Please only purchase if you understand that these are used items. They will be disassembled for shipping.