Features: AccuracyEach scope leveling tool has a bubble level both on reference level barrel clamp level for precise measurement. the magnetic bottom on reference level can add weight stability.AdjustableThe scope level is adjustable fits almost all types of guns, even the largest diameter barrels, including shotguns.DurableUses precision machined aluminum with an anodized finish, ensuring the gunsmith level better durability.PortableIt can be easily put into your hbag case, easy to take with you use anywhere.ApplicablerangeSuitable for leveling your scopesight,calibration precision,etc.SpecificationsType:Level CalibratorMaterial:aluminumQuantity:1pcColor:s color\/blackSize:74.51.5cm\/2.751.770.59inNet weight:128g\/4.52ozPackages:1Level CalibratorAccuracyEach scope leveling tool has a bubble level both on reference level barrel clamp level for precise measurement. the magnetic bottom on reference level can add weight stability.AdjustableThe scope level is adjustable fits almost all types of guns, even the largest diameter barrels, including shotguns.Durable