SWANS SPORTS BAND Sports Glasses Band [Product Description] SWANS Sports Glasses Band Size: Approximately 180mm - 230mm Width: Approximately 15mm ● Prevents glasses from slipping during various sports ● Easy to attach and detach with a buckle ● Uses an antibacterial coated woven belt ● Free size suitable for children to adults (Size: Approximately 180mm - 230mm) [Condition of the product] I tried it on once, but it didn't fit me, so I didn't use it. I think it's clean with no stains.