【Set of 3 Stainless Steel Fishing Tackle Parts】 These are products commissioned by a fishing enthusiast. As I am not familiar with fishing, the specific use is unknown. They come with tightening hardware, so I believe they are parts for inserting something into a pipe and tightening it. The items are unused, but there are original material scratches and weld burns. If you are concerned, please paint them before use. 【Material】SUS304 Stainless Steel 【Pipe Inner Diameter】19 mm 【Pipe Length】40 mm 【Tightening Hardware】Stainless steel bolt, round bar 【Size】Please refer to the photos. Feel free to ask any questions. Please consider purchasing only if you agree to no claims or returns. Thank you for looking!