High Quality Adopts metal material, strong and durable. Does not wear out the body and lens mount. Stylish appearance, lightweight body, seamless integration with the lens Adjustable Magnification The 3 rings form 7 different combinations, which extend the focal length of the lens for close-up shots, and do not alter the optical quality to ensure there is no glare in the image Wide Compatibility Provides images with better quality than the close-up filter, a good replacement for macro macro lenses for macro photography Autofocus Lens Electronic contacts maintain camera autofocus and light metering function, Fits well to EF camera mounts. Flexible composition of different magnifications, any combination to get the required magnification Quality Assurance Perfect after-sales service: If you have any questions about our products and want to communicate with us. 24-hour professional customer service, customer service to answer all questions for you