Silver, free-size zori (sandals), with non-slip soles for excellent stability. - Color: Silver - Size: Free Size - Sole Type: Non-slip Thank you for viewing. I purchased these and have kept them stored without removing them from the plastic. I don't think the material is likely to hydrolyze. It's not a hard material. The total length is approximately 23-24cm. I opened them for the photos, but I will put them back in the original plastic and ship them in a suitable cardboard box.