【Super Strong Magnetic】The Syncwire MagSafe phone ring holder is made with N55 NdFeB magnets, providing exceptional magnetic force. You can securely attach your phone to the MagSafe magnetic phone ring holder with just one finger, experiencing a strong hold that resists shaking or movement. The magnetic force can be enhanced by 5 times when used with the provided metal ring. 【Double-Sided Magnetic】Features a unique two-sided magnetic design, so it work with MagSafe car mounts without the need to remove the ring. It can be attached to any magnetic metal surface, such as fitness equipment, fridges, bread machines, etc. The side attaches to the phone can hold up to 2.6-3 lbs(1.2-1.4KG), the magnetic force is enhanced to 10 lbs(5KG) used with the provided metal ring. Meanwhile, the back of the holder can hold weights of up to 2.2 lbs (1KG). (Tested by Syncwire Labs)