The specific Magnet Circle QI cases are made of TPU ultra-thin that fits perfectly to the body of the Smartphone, they have a non-stick micro-pattern inside that prevents the appearance of condensation when be in contact with the Smartphone.
Virtually invisible. Ultra thin They have a metal ring to make them compatible with Apple's Magsafe charging system. Allows access to all buttons, connectors and features. Non-stick interior inside that prevents the appearance of condensation when being in contact with the Smartphone.