ICE N COLD’s cardboard carriers are made from heavy durable cardboard stock. They are ideal for quick and easy transportation of any 750ml or 22 oz bottle. Flat packed for easy storage and easy to open and fill with bottles! Ideal for breweries, taprooms, bars, liquor stores, convenient stores, or any other business that offers carry-out size packs. Don't be fooled by the competition and their hidden costs -- Our bottle carriers are stronger with an added support slot on the bottom of each holder. Most carriers sold are with a single slot, making it more vulnerable to breakage, not ours! Avoid the mess, stick with the quality that's proven! Our 4 pack bottle carrier is designed for quick and easy transportation. Outside Dimensions - 7" x 7" x 11" / Opening Dimensions 3 1/2" x 3 1/2".