Thank you for finding my listing among many others. ☆ Immediate purchase welcome ☆ Free shipping Balance disc cushion ball with air pump included. 【Product Description】 Are you worried about weakened core muscles and poor posture due to sitting all day for telework or desk work? This "Balance Cushion Ball" is perfect for you! 【What's great about this product!】 * Train your core just by sitting! Simply place it on your usual chair, and the unstable seat naturally stimulates your core. You can efficiently train your inner muscles while doing other things. * Also effective for improving posture! By trying to maintain balance, you naturally straighten your back, supporting concerns about posture such as a hunched back. Good posture also improves your first impression! * Also for foot massage! One side has a textured surface that comfortably stimulates the acupressure points on your feet. It's also perfect for refreshing yourself during work breaks. * Comes with a pump! (Colors are red, blue, green, pink, or purple.) You can adjust it to your preferred firmness immediately after arrival. It's also easy to inflate and deflate. Recommended for those who: * Want to get rid of lack of exercise but don't have much time * Sit all day at a desk job * Are concerned about poor posture * Want to train their core * Want to exercise easily at home * Want to refresh themselves Why not take this opportunity to get an ideal body and a healthy life with easy-to-start core training? 【Product Specifications】 Diameter: Approximately 34cm Weight: Approximately 900g Weight Capacity: Approximately 300kg Material: PVC 【Shipping Method】 Shipping will be via Yu-Packet Post. Shipping Date: Within 1-2 days after payment Estimated Arrival: Approximately 2-4 days after shipping * The product will be delivered to your post. * It may take a little longer for those in remote areas. 【Shipping method cannot be changed】 It will be shipped folded. Please understand. 【Notes】 To keep the price low, it will be simply packaged folded. Please understand. We will handle initial defects, so if you have any issues, please contact us "before confirming receipt" or "before rating." We will check the situation and respond sincerely. Thank you for reading to the end.