Accurate Check For Perfectly Aligned Scope Crosshairs
Adjustable, self-aligning V-blocks with integral spirit level makes zeroing your scope faster and far more accurate. Enhances final scope accuracy by squaring the crosshairs to the bore. Even a slight cant of the crosshairs can reduce overall accuracy, change point of impact and increase the likelihood of missed "bulls" or wounded game.
Big Book Catalog, Issue:72, Page:460
SPECS: Aluminum, anodized finish, black. 5-1/2" (14cm) long,
2" (5cm) wide. Includes complete instructions.