GULL Bonito 435 fins, size M, perfect for diving. Used about 3 times, I stopped diving after catching a cold that turned into otitis media, and they've been stored away. They've been cleaned thoroughly, but there's some staining on the tips of the fins that won't come off. However, the rest is relatively clean as shown in the photos, and there are no problems with putting them on or taking them off. Enjoy the ocean! ♡ Please refrain from purchasing if you are concerned about used items or are overly sensitive. - Brand: GULL - Model Name: Bonito 435 - Size: M (23-24) Thank you for looking.