MLB Boston Red Sox Magna Coolie One Magna Coolie Measuring 4 1/2" x 3 1/4" featuring Team Logo Revolutionary Beverage Holder Combining Powerful Magnets with Soft but Durable PVC Easily Attaches to any Steel Surface Powerful Magnets are Deep within the Soft PVC Holder so Surface Scratches are not a Concern Holds Most 12 to 16 ounce Cans or Bottled Beverages