We call them Magnum because of their rugged & beefed up looks. Featuring sturdy stems & an oversized adjuster ball. Small Magnum mirrors have 5 1/2″ stems with 5″ x 2-3/4″ mirror heads. Magnum Mirrors have a beautiful chrome-plating & a style all their own. Hardware for a variety of H-D mounting applications is included. Mirror Adapters (P/N 1445, 1446, or 1458) required for installation on Metric Bikes. Can be used left or right