Actual Size: Approximately 11 cm x 8.5 cm (Suitable for sizes approximately 22-24.5 cm) Made with PP rope. Base and thong are 100% cotton. The thong uses cotton filling. ★ The front part of the thong (zen-tsubo) can be adjusted. If it's tight, adjust it to the perfect length for your foot. ★ The zen-tsubo uses cotton fabric, so it won't stretch because it doesn't use knit fabric. ★ Reinforced slightly to stimulate the arch of the foot. Wearing Ashinaka (half-foot sandals) allows you to use your toes and strengthens the muscles of your feet. ☆ Gripping the thong opens your toes and prevents bunions. ☆ Stimulates the arch of the foot, improving blood circulation. ☆ Placing your heel on the ground shifts your center of gravity backward, allowing you to stand with a straight posture. ☆ Improves posture and can alleviate lower back pain. Various problems can be expected to be resolved, such as the above. If it gets dirty: You can wash it in the washing machine using a laundry net, but it may fade, so wash it separately at first. When shipping: It will be delivered in a compressed state, so please shape it before use. Pattern/Design...Floral Material...Cotton