These lids are great the way they are or you can add rhinestones to make them unique. They fit most double walled tumblers including the ones listed in my shop and the Starbucks tumblers. They are made of plastic and have a hole on one side for the straw.  The inner circumference measures 3 1/4" and are approx. 3" in height.  If you are looking for a bundle of lids please see other listings.