Car Key RFID Anti-Magneti

Features: 1) This soft-textured car signal bag is anti-magnetic, anti-radiation, anti-electronic information leakage, anti-positioning and anti-tracking and can block the signal of the car key and mobile phone. 2) The inner layer can effectively prevent the demagnetization and information leakage of the bank cards and other certificates. 4. Structure: It boasts two layers. The outer layer can prevent the radiation but won't affect the normal use of the car key, while the inner layer can prevent the car key signal. 5. Size: (approx.) unfolded size: 20*10cm/ 7.87*3.94''; folded size: 13.5*10 cm/ 5.31*3.9 4'' 6. Maintenance: Wipe with the clean water or a small amount of detergent. No dry cleaning. No exposure to the scorching sunlight. No ironing. No bleaching.