This is the metal mount for the LUMIX G VARIO 12-32mm f/3.5-5.6 ASPH. lens. Included accessories are the front and rear caps. The exterior shows some signs of use, such as minor scratches. There are two reasons for this being a "defective" item. Firstly, while there is no mold when viewed with an LED light, there are two small areas of cloudiness on the edge of the inner lens element. I have used it, but I haven't particularly noticed any impact from the cloudiness. Also, there is a lot of dust and debris inside, which doesn't affect practical use, but the optics are not pristine. Secondly, there is a misalignment in the zoom ring. I bought a used lens from a recycle shop that wouldn't retract, intending to fix it myself and remove the zoom ring, but I turned it with some force, and it retracted. Normally, the lines in the red circle in image 9 should align when retracted, but as shown in image 10, there is a significant misalignment. Therefore, while the focal length and zoom ring markings would normally align when zooming, the markings are useless because the zoom ring is misaligned. I suspect the previous owner didn't understand the mechanism and attempted a repair, and the recycle shop didn't notice the zoom ring misalignment and judged that it wouldn't retract. I tried to remove the zoom ring to correct the misalignment, but it was strongly glued and wouldn't come off. It still retracts and zooms in its current state, so there are no issues in practical use. Due to the above two points, while there are no issues in practical use, it is a defective item, so I will sell it at a slightly lower price. I haven't been able to confirm the image stabilization as I use an Olympus camera. LUMIX G VARIO 12-32mm f/3.5-5.6 ASPH. lens, Φ37 filter diameter, with image stabilization. - Brand: LUMIX - Model Name: G VARIO 12-32mm f/3.5-5.6 ASPH. - Filter Diameter: Φ37 - Minimum Focusing Distance: 0.2m - Image Stabilization: MEGA O.I.S. Thank you for looking.