Horizontal circle - graduated to single degrees and reads by vernier direct to 15 minutes, Vertical arc - reads to degrees 45-0-45, Horizontal tangent screw and vertical lock and tangent screw for precise movement control, Top mounted leveling vial - for effortless viewing, Large leveling screws - easy to turn, 40-6910 Includes > Builder's transit level, instruction manual with warranty card, hard-shell carrying case