Adjustable Stretch Material Back Support Belt - Color: Black - Design: Stretch material, adjustable belt - Size: Unknown (Total length 91cm) Thank you for viewing. I used it only once, but the size didn't fit, so I've been storing it at home. I wrote my name on the tag, so I've erased it with a marker. I'm selling it at a low price because I don't know the size. According to my amateur inspection, the total length is 91cm.