USA chan Rubberband blue & yellow set - Colors: Yellow, Blue - Material: Silicone Thank you for viewing. This is a WurtS rubberband. I used it a few times at live shows, but there are no noticeable stains or damage. I have stored it in a place away from direct sunlight at home. I will answer any questions you may have. Thank you. Genre: Domestic Artist Domestic Artist: wurts Item Type: Rubber Band