This MagSafe magnetic card holder features an upgraded 3500Gs strong magnetic system, securely attaching to the back of an iPhone 17 or a MagSafe-compatible phone case. The holder is crafted from Pu leather and features a multi-functional three-card slot, accommodating three cards or two cards and three bills. A 20mm wide card slot at the bottom allows for quick and easy card access. An internal Rfid/Nfc signal shield effectively prevents unauthorized transactions and card demagnetization. Its slim and lightweight design meets the convenience needs of daily commutes. A magnetic ring is also included in the package.