Opened for inspection. Due to defects from the manufacturing process, such as warping, scratches, or air bubbles, this item is considered a "defective" product. (See photos; these are not the actual items being shipped.) Please refrain from purchasing if you are looking for a perfect product. This item will be shipped via non-standard mail, so it may take some time to arrive. For those who prefer anonymous shipping, it is available for an additional 100 yen. Thank you for your understanding. Regular price: 1480 yen This product features a three-dimensional design that makes it easy to naturally engage the muscles around the pelvis just by sitting on it. The central bulge gently stimulates the pelvic floor muscles (PC muscles). Simply place it on your usual chair or floor to incorporate self-care into your daily "sitting time." Recommended for those concerned about posture or those who want to be mindful of their hip line. Can be used during desk work, housework, watching TV, and other "multi-tasking" activities. Lightweight and compact, making it easy to use at home or in the office! A self-care item that can be started without any special knowledge or skills, even for those who are not good at exercise.