These are FLUX GU bindings. I've used them for about 3 seasons. There are multiple scratches and stains as shown in the photos. I think they're still usable, but I threw away the box and instructions, so the size isn't clear. My boots were 23.5. Since the size is unclear, I'm selling them at a bargain price, so please understand that they are non-refundable and non-returnable. m(_ _)m Please consider this item, understanding that it is used and the size is uncertain. I will put them in a box from a different binding and ship them in a bag.