Interlochen Cell Phone Card Holder Sale! from $5.99 USD /per Color Black Blue Green Orange Red Produc variants Black Blue Green Orange Red Qty. Add to Cart Couldn't load pickup availability Refresh This convenient silicone ID holder adheres to the back of cell phones with ease, using 3M adhesive. Holds a maximum of 2 cards and is easily removable. 2 1/4"W x 3 3/8"H