Package Quantity:6Product Description: Keep your bottled beverage ice cold using your own drink tumbler. – The is an accessory for your 20-ounce, stainless steel, double walled, vacuum sealed drink tumbler. Now you can keep bottled beverages as well as other drinks ice cold in your drink tumbler. Fits most all drink tumblers with an approximate top opening of 3.2 to 3.4 inches. (Most all tumblers are this size). The will adjust to the top dimension of your drink tumbler. The will also fit most all bottle styles and sizes from a slender Corona bottle to a short chubby Lagunitas IPA bottle. (If the bottle fits in your tumbler, the will keep it cold). THE COLD BOTTLE BUDDY IS PATENT PENDING.