100 PCS Aluminum Foil Anti Theft RFID Blocking Sleeve Card Protector, Size: 9.1*6.3cm (Gold)

Aluminum foil RFID blocking sleeves protect cards from unauthorized scanning. They are designed for everyday use.

• Product type: Antimagnetic RFID Package
• Compatibility: various bank card, shopping card, bus card
• Material: aluminum foil
• Key feature: helps protect personal information
• Color: Gold
• Prevent strong static interference
• Prevent strong electromagnetic field damage
• Prevent others from maliciously stealing personal information
• Extend the effective life of smart cards
• Size: 9.1*6.3cm