Fangrui Product Details This Laer Calibrator Is Made Of High-grade Aluminum Alloy Material, Lightweight, High Strength, Corrosion Resistance, And With Long Service Time. Highly Accurate And Adjustment-free Design, The Calibrator Utilizes Infrared Light, With A Tube Straight In For A More Convenient And Precise Adjustment. Shipment Includes A Full Set Of Accessories, Available On Arrival And Easier To Use. Features: Made Of High-grade Aluminum Alloy Material, Lightweight, High Strength, Corrosion Resistance, And With Long Service Time. Infrared Calibrator, Laser Light Has A Long-distance, Bright, And Clear Light, Which Better Helps Calibration Adjustment. Highly Accurate And Adjustment-free Design, The Calibrator Utilizes Laser Light, With A Tube Straight In For A More Convenient And Precise Adjustment. The Battery Compartment Design Is Simple And Beautiful, The Tail Part Can Be Opened By Unscrewing, Convenient And Practical. Shipment Includes A Full Set Of Accessories, Available On Arrival And Easier To Use. Specifications: Name: Laser Calibrator Material: Aluminum Alloy Color: Red, Green (optional) Battery: 1 * Cr2 Battery, 3v, 800mah (included) Power: <5mw Diameter: 4.2mm Item Size: 178 * 18 * 18mm / 7.01 * 0.71 * 0.71in Item Weight: 60g / 2.12ounce Package Size: 195 * 104 * 30mm / 7.80 * 4.09 * 1.18in Package Weight: 131g / 4.62ounce Packing List: 1 * Laser Calibrator 1 * Screwdriver 12 * Adjustable Adapter 1 * Set Of Screw 1 * Wrench