This Power Running Resistance Training Speed Sled is excellent for adding speed training to your workout whether it be for aerobics, football, soccer, tennis, etc. Perform short distance sprints to boost leg power and stride length. Increase strength by running hills. Power Running Resistance Training Speed Sled Features: Burn fat and calories faster by adding resistance to running drills Add the amount of weight that best fits your training needs Weights not included Dimensions: 23.5 inches long; 15 inches wide; Vertical weight rod 8.5 inches Long & 1 inch in Diameter