【Brand Information】 This is a set of step-up rings from Kenko and Horseman. Both are made in Japan, and are reliable brands. 【Size Details】 Kenko is 49→55mm and Horseman is 40.5→52mm, allowing compatibility with different lenses. You can choose according to your needs. 【Included Items】 A dedicated case is included, making it convenient for carrying and storage. - Brand: Kenko - Size: 49-55mm - Country of Manufacture: Japan - Brand: Horseman - Size: 40.5-52mm - Accessories: P case Thank you for viewing.