Free yourself from unnecessary baggage and carry only your essentials. The new silicone sport ID case features an opening to easily store and view your ID in addition to an exterior pocket. It measures 4 ¾ by 2 ½ inches making it the perfect size to hold your ID, credit cards and cash. Top quality silicone is water repellent and non-toxic. Easily hooks up with the Big O Key Ring or can stand alone as your key ring.