Invisible Card Holder Phone Case w/String

Made with TPU+PC, this 2-in-1 design features a hidden card case on phone Back, One String on the right bottom of the phone case, not easy to drop off, using special texture design inside good for Thermal Dissipation. Full Cover on the back, Could Prevent scratches. It is compatible with phone6 phone7, phone6 plus, phone7 plus. 5 7/16" L x 2 3/4" W x 5/16" Thick