The Caruba Step-up/down Ring is a practical lens filter adapter that allows for flexible use of filters and accessories. With an outer diameter of 77 mm and an inner diameter of 74 mm, this adapter is ideal for photographers who wish to use various lens and filter combinations. The ring is designed in a simple black, giving it a professional appearance that seamlessly integrates into the equipment. It is specifically designed for the Caruba brand and provides a reliable connection between the lens and filter. By using this adapter, users can fully take advantage of filters, such as polarising or ND filters, without the need to purchase multiple filters in different sizes. The Step-up/down Ring is an essential accessory for anyone looking to expand their photographic possibilities and offers a straightforward solution for adjusting filter sizes.