Olympus Kenko Macro Extension Tube Digital Extension Tube Set for Micro Four Thirds 10mm/16mm Set - Brand: Olympus - Model: Kenko DG EXTENSION TUBE 10mm - Model: Kenko DG EXTENSION TUBE 16mm By attaching a macro extension tube between the camera body and the lens, you can get even closer to the subject than the lens's minimum focusing distance, allowing for macro photography. This is a set of two rings, 10mm and 16mm. They can be used individually or in combination. It enables macro photography without the need for a separate macro lens. JAN code: 4961607809433 Suggested retail price: ¥21,000 (excluding tax) Please check the photos as I do not have expert knowledge. Thank you for looking.