SHARPSITE vial technology improves the readability of the vial. Ergonomic keyhole profile delivers maximum durability and continuous grip across entire level. Wide magnesium base for enhanced screeding functionality and cleanability. Dedicated working edges include a rounded and a squared bottom edge for cutting and finishing concrete. High contrast vial system is easy to clean and optimises visibility. Vial surrounds are optimised for screeding applications and cleanability. Slope vials rated for ?? & º? (1% & 2%).