Product Review

Newly improved RFID isolation and protection bag with durable conductive hook and loop closure and weather resistant cover. Use to isolate spare keys, Bitcoin wallet hardware, etc. Can also be use for keys when not in use to deter car entry and possible theft by unauthorized people. Made in the USA of US materials. Base layer: silver (top) /copper/nickel (bottom) coated nylon fabric. Outer Layer: sports nylon. Exterior Dimensions: 3 1/4" W x 4 1/2" L Interior Dimensions: 2 5/8" W x 3 7/8" L This pouch fits one key fob or USB. If you are looking for a larger size for all your keys or multiple items, we suggest the RF Isolation Smartphone Bag which you can also buy here on Amazon.