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

Aluminum foil RFID blocking sleeves provide protection against unauthorized scanning of personal information. They are compatible with various bank cards, shopping cards, and bus cards.

• Product type: Antimagnetic RFID Package
• Material: Aluminum foil
• Color: Silver
• Size: 9.1*6.3cm
• Prevents strong static interference
• Prevents strong electromagnetic field damage
• Prevents theft of personal information
• Extends the effective life of smart cards
• Intended use: Everyday use
• Category: Apparels & Bags