Purchased on Amazon. Brand new, unopened. ● 【Balance Cushion】 By sitting with awareness of your core, you can train your ability to maintain balance. Also, by using the cushion for exercise, you can do body-making training with awareness of your inner muscles! ● 【Reussite's Commitment】 By making it air-filled, you can adjust it to your preferred height. By making it lightweight, it is easy to carry, so you can use it anytime, anywhere. We also paid attention to the fabric and used soft velvet. It can also be used as a backrest cushion. ● 【In various situations, in spare time】 You can use it in various places, such as when traveling, at home, or for desk work in the office. Turn your sitting time into gym time! ● 【Also a strong ally for postpartum mothers】 Recommended as a donut cushion for those who have difficulty sitting due to postpartum hemorrhoids, etc. Our cushion is an oval donut shape, and when you sit on it, your weight is distributed and air enters inside, so your buttocks fit. The design prevents the affected area from touching the seat surface when sitting, and we have created a fit that suits your body shape. It is well-received by mothers who are suffering from postpartum hemorrhoids. ● 【Also for presents】 Recommended as a baby shower gift, birthday present, or health goods gift for Mother's Day. ● 【Product Specifications】 Air cushion (approx.): Length 42cm Width: 36cm Weight (approx.): 220g 【Color】 Black 【Contents】 Air cushion / drawstring bag