The Kalt Stepping Ring 46-55 is a high-quality accessory designed to allow the use of filters or other lens attachments with different thread sizes. Made by Kalt, a trusted brand in photography accessories, this stepping ring is durable and reliable. This specific model has a thread size of 46mm on one side and 55mm on the other, making it perfect for stepping up from a smaller to a larger diameter. Ideal for photographers looking to adapt their equipment for a variety of creative purposes, the Kalt Stepping Ring 46-55 is a must-have tool in the Step up Rings category.