The Bower 55-55 Macro Ring Adm is a high-quality step-down ring designed to allow a camera lens with a 55mm filter thread to be mounted on a camera with a 55mm filter thread. This ring is perfect for photographers looking to achieve close-up macro shots with precision and clarity. The durable construction ensures a secure fit and reliable performance. The Bower 55-55 Macro Ring Adm is a must-have accessory for any photography enthusiast looking to expand their creative capabilities. Enhance your photography experience with this versatile and practical step-down ring from Bower.