The Stanley 043617 FATMAX Pro Magnetic Level is a robust 400mm professional-grade tool designed for precision leveling. It features two large, bi-material vials for clear and accurate horizontal and vertical readings, ensuring reliable performance on the job site. The level is equipped with strong rare-earth magnets for secure attachment to metal surfaces, facilitating hands-free operation. Its solid block acrylic vials are highly resistant to impact and offer a guaranteed accuracy of +/- 0.5mm/m. The lightweight aluminum body and shock-absorbing end caps enhance durability and protect against drops, making it an essential tool for construction, carpentry, and general building tasks.