Compatibility: Only for iPhones with MagSafe (12 series or later，17e), phones with official MagSafe cases, ESR magnetic cases, and ESR Universal Rings

Smart Card Storage: Safely store up to 4 cards and 3 banknotes with the built-in dynamic tension spring

Strong Magnetic Lock: Powerful ring of magnets keep your wallet securely attached to your phone

Easy Card Access: Get effortless acess to your cards when you're