The Shooting Made Easy scope mount leveler is a true must-have accessory for precision shooters. This lightweight scope level mounts quickly to your favorite 30mm or 1 rifle scopes and provides instant feedback on your rifles position with the integral bubble level. Streamlined eye-pleasing appearance blends in perfectly with traditional scope rings while helping to eliminate accuracy-robbing canting errors. Easy-to-see offset level helps make immediate corrections without taking eyes off the target. Attaches to your riflescope like a traditional scope ring; halves clamp together with two steel Allen head screws. Aluminum construction, hard-coat anodized, matte black. Reversible design works for left- and right-hand shooters.