Material: zinc alloy + magnet. Size: 57*57*8mm Weight: 61g. Magnet: N52, load-bearing capacity: 700g. Applicable: iPhone 12/13/14/15/16 series mobile phones, other mobile phones need to be used with iron sheets. Accessories: magnetic ring * 2. Supports double-sided magnetic suction, dual-axis 360-degree adjustment, various angles adjustable.