Stepmate Bridges & Ramps Designed to be placed over the potential hazards of pipes, cables & hoses in the workplace. These products are easily placed into position and can be used as both a temporary measure or as a more permanent fixture. Designed for pedestrian and light equipment use only. Standard colour is safety yellow which highlights the safe walking route over any potential hazards. Also have a wide range of colours to suit your individual location. Surface Grades : Coarse grade: 1-3mm aggregate (1/16”-1/8” approx.), Extra coarse grade: 3-5mm aggregate (1/8” - 3/16” approx.), Coarse surface grade will be supplied if any surface grade is not specified.