Durable layout measuring tool made from a sturdy material for long lasting use and safe handling. Vertical magnetic hammer head uses magnetic force to automatically adhere to steel surfaces for hands free positioning. Self locking mechanism allows secure attachment to wood panels or other soft materials, reducing movement during work. Magnetic tool for building measurements provides reliable reference for layout and alignment tasks. Use scenarios: - Attach to steel frames or metal studs to quickly position and mark lines without lifting or slipping. - Secure onto wooden panels or soft substrates to take measurements or mark cut lines during cabinet, shelving, or furniture installation. - Use as a magnetic reference during room layout and alignment checks when metal surfaces are present to improve accuracy and efficiency.