It is one of the most affordable hurdles for exercises in which muscles exert maximum force in short intervals of time, with the goal of power increasing such as speed-strength. This training focuses on learning how to move from a muscle extension to a contraction in a rapid or "explosive" manner. This kind of hurdle is made up of heavy duty fabric and wooden board. It is available in different sizes from 15 to 38 cm. The standard width of the hurdle is 45 cm. It folds for easy storage and stacking.