Thank you for viewing. This is a Velo Orange front carrier. They are often out of stock these days, so if you've been looking for one, how about it? The material is stainless steel. It's quite sturdy, and I used it with confidence. It also changes the impression of the bike. If you'd like, I can include the homemade top plate (aluminum) shown in image 9, so please let me know. Please check the condition from the images. By the way, the center mounting stay is slightly bent, but I don't think it will affect the use. (See image 6) I used it on a Surly Straggler, Cross-Check, etc. I rode it once or twice a week, so I haven't used it that much. For search: Blue Lug SimWorks Rivendell Circles Classic Retro