Feature:1. Easy Installation: The magnetic adapter ring allows you to switch from a 72mm filter that requires threaded mounting to a magnetic quick mount, making it easy to quickly change between filters.2. Aluminum Alloy Material: Made of aircraft grade aluminum alloy with CNC molding process, this filter ring adapter is erosion resistant and impact resistant, ensuring long lasting use.3. Secure and Reliable: Bottom ring features standard thread for secure attachment, while top ring allows for normal installation of threaded filters, preventing accidental detachment.4. Outstanding Performance: Precise fit between the magnetic filter adapter ring and camera lens ensures no light leakage, delivering exceptional results, use at ease.5. Lightweight Design: The aluminum filter ring adapter is extremely lightweight, adding minimal weight to your camera setup, excellent accessory for on the go photography.Specification:Item Type: Magnetic Filter Ring AdapterMaterial: Aluminum AlloyConversion Size: Approx. 72mm / 2.83in.Package List:1 x Upper Ring1 x Lower Ring (Pre Installed)