This is a BG harness strap. It's the metal hook type. I bought it for a baritone saxophone, but I've decided to use a different strap, so I'm selling this one. Because it's a harness with large cushioning, it gives the impression that it significantly reduces the burden on the neck and shoulders. I've only used it a few times, so I don't think there are any noticeable stains, but please understand that it is a used item before purchasing. I will ship it in the case it came in when I bought it. ★If you have any questions, please feel free to ask in the comments section★ The following is a product description. [Model Number] BG COMFORT HARNESS MAN Metal Hook S40CM Saxophone Baritone Saxophone Strap Harness Strap YANAGISAWA SELMER YAMAHA