Trademark Innovations Pull Sled Trainer Bag with Adjustable Belt for Sprinters

This adjustable weight pull sled is the perfect training aid for improving speed, strength and endurance. Use it for sprinting, backpedaling, or side to side movement. Develop explosive speed while improving agility. Fill all or some of the included weight bags that can each hold 10lbs. Of sand. (SAND NOT INCLUDED). The velcro belt and leash are both adjustable for maximum comfort. For indoor or outdoor use on turf, wood or grass or other low friction surface. We do not recommend using on asphalt. By Trademark Innovations.