Feature:1. Magnetic Quick Mount: The ring adapter easily switch your 77mm filters from screw mount to magnetic mount for quick and convenient filter changes, saving your time and effort.2. Sturdy Construction: Made from aluminum alloy with CNC technology, the camera filter ring adapter provides enhanced oxidation and drop resistance, ensuring no deformation.3. Enhanced Performance: The magnetic adapter ring achieves precise alignment between filter adapter and camera lens for light leakage proof results and superior image quality.4. Simple Installation: Bottom ring securely screws into place with standard threading, while top ring allows for normal screwing of filters, ensuring easy and secure setup without detachment.5. Lightweight and Compact: The ring adapter converter is extremely lightweight, adding minimal weight to your camera setup for effortless use and portability, not affecting your camera's performance.Specification:Item Type: Magnetic Ring AdapterMaterial: Aluminum AlloySize: Approx. 77mm or 3in.Package List:1 x Upper Ring1 x Lower Ring (Pre Installed)