Hurdles are a major player when it comes to speed training. Hurdle drills reinforce balance, stability, correct posture, body awareness and a range of motion. Using these Large Adjustable Hurdles can improve your stride length and lower body power so you'll increase acceleration and top speed Available in 4" (10cm), 6" (15cm), 12" (30cm) and 18" (50cm) Stride Length Drill increase stride length. Ankle Hops develop strength in your feet and shins. Hurdle Hops build explosive speed. Suitable for use indoors or outdoors. Colour: Orange. Sold Individually Examples of some drills used with Agility hurdles: Stride Length Drill (increase stride length) Ankle Hops (develop strength in your feet and shins) Hurdle Hops (build explosive speed)