Wheeler Engineering Professional Reticle Leveling System Yellow. This Gunsmithing Measuring Tools & Gauges from Wheeler Engineering is comprised of two machined aluminum level housings calibrated to their integrated levels. CNC machining factory adjusted calibration set screws anodized aluminum construction and a protective molded case put the Professional Reticle Leveling System in a class of its own. Specifications for Wheeler Engineering Professional Reticle Leveling System: Manufacturer: Wheeler Engineering Condition: New Fabric/Material: Machined Alluminum Color: Yellow Features of Wheeler Engineering Professional Reticle Leveling System: Precision tool for scope reticle alignment Factory calibrated Reference Level Maximize accuracy potential Tunable Barrel Clamp Level CNC machined aluminum level housings Protective storage case Package Contents: Wheeler Engineering Professional Reticle Leveling System Wheeler Engineering 119050: Professional Reticle Leveling System Yellow