A. Hello, dear buyer. Welcome to our store. We have a lot of stock. You can buy directly. We will ship from China within 24 hours (except weekends). If you have any requests, please contact us. B. Description: It's made of high - quality aluminum, durable and practical. Easy to install and convenient to use. It's a useful tool for handmade coffee. C. Note: 53MM FITS 54MM COFFEE FILTERS D. Specifications: 1. Item Type: Dosing Ring 2. Material: Aluminum 3. Color: Silver, Black, Rose Gold, Gold. 4. Suitable for: /51/53/54/58 mm profilers E. Feature: The stainless steel base presses evenly and effortlessly. It's a helpful tool to get good coffee. Perfect filling of the pressure channel is a necessary condition to get good espresso coffee. F. Package includes: 1* Dosing Ring G. Note: 1. Due to the problem that the ring cannot suck the filter, we found that the filter material of many customers is not stainless steel, but alloy. If your filter is made of alloy and the ring cannot be sucked in, please check whether your filter can be sucked in before purchasing. If not, we will not take any responsibility. 2. Regarding the size, we have marked 3 sizes, 51mm, 53mm, 58mm. Please measure the diameter of the inner hole of the coffee basket before purchasing. Because the ring is placed in the coffee basket (53mm is suitable for 54mm filter). As shown below. If you have any questions before purchasing, you can contact us and we will provide you with service to avoid a bad shopping experience. H. Thank you and best wishes.