The ring is magnetic with nothing extra in design. Its seamless alignment gives you the confidence to snap any MagSafe accessories on whatever phone you have.
Pair it with the Snap Phone Tripod Stand/Flip iPhone Laptop Mount/Snap Phone Grip.

Dimensions: 2.2*2.2*0.06 in/55*55*1.5 mm
Weight: 0.2 oz/5 g
Material: Metal sheets, Magnets, Adhesive
Compatibility: It sticks to phone cases made from TPU, PC, or aluminum metal.
Note: it doesn’t work with bare phones or phone cases made from silicone, leather, wood, matte glass, or with a painted, uneven or waterproof surface.