Sturdy metal housing with rubber reinforcement. Large, easy-to-use focusing knob. Top mounted optical sight for quick reference. Magnetically dampened, wire-hung compensator for optimum range and accuracy. Fine motion knobs on both sides with friction-braked rotation, endless horizontal drive. Compensator lock (transport lock) protects instrument during transport or storage. Includes hard-shell carrying case with dual latches, plum bob, Allen wrench, adjusting pin, and instruction manual.