This laser calibrator is made of high-grade aluminum alloy, offering a lightweight, durable, and corrosion-resistant design for long-term use. Featuring a highly accurate, adjustment-free system, it utilizes infrared laser technology with a straight tube alignment for convenient and precise calibration. The package includes a complete set of accessories, ready to use upon arrival.Features: - Constructed from high-grade aluminum alloy for lightweight strength and corrosion resistance - Infrared laser provides bright, clear, and visible light over long distances to assist in accurate calibration - Precision-engineered with a fixed-focus design and straight tube for reliable, tool-free alignment - Streamlined battery compartment with screw-off tail cap for easy access and secure closure - Complete accessory kit included for immediate use Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery, 3V, 800mAh (included) - Power: 3V