24in Modular Speed Hump Straight Section is a great way to help moderate traffic in specific zones by reducing vehicle speed required to traverse the speed hump. Each speed hump features highly visible reflective safety squares and a textured grip surface for increased traction. Includes (4) pre-drilled mounting holes for permanent application mounting hardware is not included. Heavy duty weather resistant rubber construction will not chip or crack. Features a bottom void design to reduce overall weight for portability.