Pure copper perforated strainer, durable. - Material: Copper - Type: Strainer - Design: Perforated with handle Thank you for viewing. The actual use might be for a sink, but I left it to AI because I don't know the official name. Until now, I used it to adjust salt content by putting seasonings like furikake in it and shaking it to remove only the salt. The material is pure copper. Diameter is 132mm, height is 90mm. There was copper rust due to salt adhering to it, so I polished it before listing. I look forward to your purchase. Thank you.