This is a brand-new Olympus CLA-12 Conversion Lens Adapter Tube that comes in its original box. Overview: The Olympus CLA-12 is a Conversion Lens adapter that allows you to attach the TCON-17x tele-converter to the XZ-1, and XZ-2 iHS cameras. Dimensions: The CLA-12 is 2.285" in diameter overall, and has a screw diameter of 55mm. It is about 1.631" in length. About the Olympus CLA-12: The CLA-12 adapter allows you to attach the TCON-17x teleconverter (not included) to the lens of your XZ-1 or XZ-2 iHS camera for greater telephoto range. Product info: allows you to attach the TCON-17x teleconverter to the XZ-1 or XZ-2 iHS camera's lens screw diameter of 55mm 1-5/8" long warranty: 1 year 60-day returns MFR # V322120BW000 Item # 279CLA12 What's in the box: CLA-12 Conversion lens adapter