The OX Hi-Visibility Green Pro Tuff Folding Rule is a 600mm folding rule designed for builders, markers, and creators. It features dimensions suitable for modern construction, including a 600mm over length for stud and floor joist spacing, and a 300mm section for screw spacing. The rule has a width of 45mm, common for framing timber and stud widths. It is constructed with reinforced brass hinges and pins, and engineered ABS plastic for enhanced durability. A center-line feature allows for measuring offset lines or splitting centers, and the central swivel hinge provides an easy angle finder from 0-180 degrees. The rule is Hi-Viz Green with white and black measurements.