This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for long service life. Featuring high accuracy and an adjustment-free design, the calibrator utilizes infrared laser light with a straight tube for convenient and precise alignment. The shipment includes a full set of accessories, ready to use upon arrival. Features: - Constructed from high-grade aluminum alloy, providing durability, light weight, and corrosion resistance - Infrared laser technology delivers bright, clear, and visible light over long distances, enhancing calibration precision - Precision-engineered with a straight tube design for improved alignment accuracy and ease of use - Simple and sleek battery compartment design; tail cap opens by unscrewing for easy battery replacement - Complete accessory kit included for immediate use and enhanced functionality Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: