Thank you for viewing! This is a stainless steel door handle. - Material: Stainless steel - Finish: Hairline - Dimensions: Please refer to the images (bolt pitch is 200) - Included: Mounting screws - Quantity: *1 set This is a surplus item from work. I've searched, but I couldn't find any detailed information about it. However, the item is heavy and has a very beautiful finish, so it seems like it would give a stylish impression. I have several of the same item, so please contact me if you'd like to purchase multiple. *Although instructions are not included, it seems like you would tighten the outer handle in the state shown in the 8th image, then attach the inner handle and secure it with set screws.