Key Shape Bottle Opener Key Chain is the most beneficial object to open bottle caps. This keyring not only looks great but also helps to hold your keys or other tiny objects safely. The body is anodized by an aluminum alloy in the form of a round key, that keeps the item free of corrosion. A circular metal ring is attached to the key. This product is also used for hanging along with your backpacks or purses as a decorative keychain. These products are mainly used at home or by the skilled bartender to remove caps from the bottles.