Adjustable length for versatile use The innovative telescopic design lets this spirit level slide to any width you need. It fits various sizes of hanging brackets and is equipped with a locking mechanism for comfortable, accurate measurements. This combination significantly improves installation efficiency and makes it a valuable tool for both professional installers and enthusiasts. Precise readout for reliable alignment The horizontal bubble on the primary level is clear and easy to read under all lighting conditions. You can mark the drill position precisely on the hanging board, reducing placement worries and ensuring a precise start point for installation. High-precision positioning and secure locking The adjustable level features two slots and is supported by two locking slots to fix your installation in place. This ensures precise positioning during the process, allowing your conditioner or other equipment to be installed step by step without the need for repeated calibration. Telescoping length with locking for efficiency The telescoping structure glides smoothly to the required width and locks securely, providing a convenient and accurate measurement. This design helps improve installation efficiency across varying sizes and applications. Use scenarios - Mounting a wall-mounted air conditioner or similar unit on brackets that require precise width alignment and secure positioning. - Laying out and aligning hanging rails, brackets, or panels for cabinets, shelves, or wall fixtures in workshops and garages. - General DIY projects that demand accurate, adjustable measurement and consistent leveling across different board sizes and mounting surfaces.