Speedsac with strap

Speedsac with strap.

• Includes 3 durable weight bags that can be filled with sand
• Sand not included
• Adjust weight options for variable weight resistance
• Adjustable leash length to accommodate athletes of any size
• Weight by bag: up to 10lbs (4,5kg)  
• Total weight: 30lbs (13,5kg)  

* * * WARNING * * *

• USE ON SMOOTH SURFACE ONLY:
• Gym floor, grass, synthetic turf_
• DO NOT USE ON ROUGH SURFACE:
• Asphalt, track & field track, etc.