SKLZ SpeedSac Variable Weight Resistance Training Sled 10-30 Pounds
- Variable weight resistance trainer helps sprinters, football players, and other athletes strengthen lower-body to improve speed and explosiveness.
- Three removable weight bags can each be filled with up to 10-pounds of sand to adjust towing resistance for variable weight training.
- 360-degree belt ring allows for multi-directional training to improve strength and mobility in any direction.
- Durable nylon shell for use on grass, turf, or wood surfaces.
- Velcro-secured straps hold weight bags firmly in place.
- Includes Speed Sac shell, 3 sand bags (sand not included), adjustable leash and waist belt.