Actual size: Approximately 11 cm x 8 cm (Suitable for sizes 22-24.5 cm) Made with PP rope. The base is 100% cotton. The thong uses fleece fabric with padding. ★ Fleece fabric is very slippery, so please be careful when walking. ★ The front part of the thong (where it goes between the toes) is adjustable. If it's too tight, adjust it to the length that fits your foot. ★ The front part of the thong uses cotton fabric and does not use knit, so it will not stretch. ★ The arch of the foot is reinforced slightly to provide stimulation. By wearing Ashihan (half-toe sandals), you can use your toes and strengthen 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. If it gets dirty: You can wash it in the washing machine in 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.