Better, faster, and more accurate reading through the patented SOLA FOCUS vials. Break-resistant acrylic block vials with a magnifying lens (+60%) and a Limited Lifetime Warranty. Improved readability in dim light thanks to optimized SOLA luminous backing. Highest measuring accuracy in standard and inverted position. Extra-strong aluminum profile with reinforcing ribs for maximum stability. Shock-absorbing 2-piece end caps provide optimum protection against damage. Horizontal and Vertical measurements.