DECORATION IS SEALED BETWEEN THE TWO WALLS; PROTECTED IT FROM WEAR. WHAT IS YOUR FAVORITE DECORATION: FULL COLOR, EMBROIDERED OR DOME?. OPTIONAL INSERTS: GLITTER, DIAMOND AND CHROME. OPTIONAL GIFT BOXES AVAILABLE FOR ADDITIONAL FEE: SINGLE, 2-PACK OR 4-PACK. DOUBLE WALL: DOES NOT SWEAT WHEN COLD OR BURN YOUR HAND WHEN HOT. DISHWASHER, FREEZER, AND MICROWAVE-SAFE. COLORED LID AND MATCHING 9" STRAW INCLUDED. MADE IN THE USA. BPA FREE, MEETS FDA REQUIREMENTS, AND PROPOSITION 65 COMPLIANT. COMPLIES WITH PROP 65. 4.25" H