sturdy Aluminum Construction: Made from sturdy alloy with anodized oxidation, this lightweight yet sturdy levels resists wear and maintain long term stability for efficient Precise levels Calibration: Specially designed for Berger holes, this professional aluminum levels ensures accurate equipment alignment and angles for enhanced accuracy in setup and user Easy Installation & Efficiency: Simply screw into the hole for quick setup, eliminating manual leveling hassles and significantly improving equipment efficiency Compact & Portable Design: This small but professional calibration tool is easy to store and carry, making it ideal for both home use and on the go applications as a practical debugging assistant generic Compatibility: Features a standardized adapter structure that fits various equipment types with Berger holes and stabilizer rod slots, offering screw in installation without additional modifications, Manufacturer: WangWeN