Brand new, unused item. Size: M 25.5-28.5cm These are silicone spacers that guide your toes into their natural shape. You can wear them barefoot, over toe socks, or inside regular socks. You can wear them inside wide-toe box shoes like barefoot shoes. I wear them with vivobarefoot shoes. You can adjust the thickness by inserting something between the first and second toes (big toe and index finger) and between the fourth and fifth toes (ring finger and little finger). * Shipped via Yu-Packet Post Mini. * For reference, I've included photos of me wearing them. They are very flexible and haven't caused any rubbing, chafing, or irritation, whether worn barefoot or with socks. The item for sale is new and unused. Please purchase only if you understand and accept no claims and no returns.