This item is almost new, having been used only a few times after being purchased new. I am selling it because it didn't fit my body type. ● Supervised by a professional trainer, allowing for various training exercises depending on your goals. ● Improves performance while reducing wrist strain with rotation! Achieve a core workout! ● High quality and durable, using a stable shape and material. Excellent durability. ※ To prevent any issues, returns and exchanges are not accepted after purchase. We cannot provide any warranty after shipping, so please understand this before purchasing. Body size: Diameter 20cm x Height 11.5cm Body weight: 730g Material: Body: ABS, metal Pad section: EVA