I purchased this new and installed it once, but it didn't attach as I wanted, so I removed it immediately. It's almost unused. The magnetic ring is not included. It can be attached to MagSafe-compatible cases and smartphones. A strong smartphone holder using N52 magnets, attachable to air conditioning vents. - Brand: Lamicall - Type: Smartphone holder - Magnet Strength: Uses N52 magnets - Mounting Method: For air conditioning vents - Included items: Non-slip pad, metal hook