Use allen wrench included to loosen both screws.
Put the scope in the middle of level. Make sure that the screw corresponds to the thread hole.
Use allen wrench to tighten the screws.
Our scope level has a strengthening structure, which is built to last and not easy to break.
Our scope level has a short distance(8 mm) of lines and others are mostly 10 mm, which means our scope level is more precise.
The fluid is high quality to make the bubble sensitive and fast to move.
It is necessary to use the bubble level to ensure that the rifle is perfectly vertical for the most precise long-range shooting. Shooting a canted rifle is not a happy experiment. Our scope level help to eliminate potential error. There are 4 option: 30mm, 34mm, 35mm, and 1 inch. All of them are easy and quick to mount.