"Removable speed bumps are a great way to instantly calm and reduce vehicle traffic speed in a specified location for a temporary period of time. The DH-PSB-1 is a portable folding speed bump designed exclusively for this task, making it easy to calm traffic during certain hours near school yards and playgrounds or during community events and fairs. For optimal portability, each 117"" long speed bump folds accordion style to a compact 13.5""L x 10""W x 12.25""H for carrying and storage."