1. Rings with different lengths of 10mm and 16mm can used alone or in combination to get the desired magnification. 2. With electronic contact, support automatic focusing, automatic exposure, etc. 3. Metal mount, fine workmanship, high precision, wear- and , and not damage the lens and camera. 4. It can match the TTL metering and AE mode of the camera body. 5. The close-up ring is only suitable for macro , so it can only be focused in close-up, and it is normal that the distance can not be focused when it is installed. Suitable for NX mount camera Condition: 100% New Tube Length: 10mm+16mm Color:Silver Material:Plastic+Metal Package Contents: 1 * Adapter Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.