Brass Tying Vise Accessory Stopper Hole Diameter 10mm This is a brass shaft stopper. The brass texture looks cool. When combined with the separately listed M5 brass knurled screw (thumb screw), it becomes easier to use, and the screw is also brass, which enhances the atmosphere. The third photo is an example of installation. The product is one of the items in the first photo. Diameter: 17mm Width: 9mm Hole size: 10mm Set screw: M5 (5mm) This product does not come with packaging. Fly Tying Fly Tying Tool Vise Accessory Fly Fishing Material Hackle Bobbin Holder Thread Tenkara Kebari (Artificial Fly) Kebari (Artificial Fly) Kebari (Artificial Fly) Kebari (Artificial Fly) Kebari (Artificial Fly) Kebari (Artificial Fly) Fly Tying VISE To keep the price down, it will be wrapped in packing material and shipped in an envelope. If you would like it shipped in a cardboard box via Takkyubin Compact, Yu-Packet Plus, or Yu-Pack, please comment before purchasing. We will change the listing price and relist the item.