Redfield 4-Hole Aluminum Rings come in a variety of heights to accommodate your individual preferences - they are also available in different finishes to match your rifle scope. What sets these aluminum rings apart from the competition, however, is the fact that they are very lightweight but still offer unmatched durability in the field. Redfield 4-Hole Aluminum Rings deliver the ideal combination of durability and strength, all in one surprisingly lightweight package. These rings are made from aircraft-grade aluminum and are built to last, no matter what challenges you throw their way.