Enhanced Design - Ringke Magnetic Slot Card Holder accommodates a maximum of 3 cards. Minimalist card slot feature offers immediate and ideal access to your main debit, business, photo, bank, credit, driver's license, or ID card on the go. MagSafe Compatible - Use with MagSafe cases only! Securely attaches to your smartphone via innovative MagSafe magnets for effortless installation and removal whenever you need.