This is my first unicycle, so it has some scratches, but I've kept it indoors, so it's in good condition. I practiced on asphalt, so it doesn't have any mud on it. ・Tire diameter (from edge to edge of the tire): Approximately 44 cm ・Height to the seat: Approximately 73 cm How about playing with a hobby horse too? Adults can play with this as well. It also seems to be good for dieting. How about giving it as a Christmas present?