This ESPN professional heavy duty inflatable bag is ready for all your hardest punches and kicks. The water filled base provides the necessary weight and stability needed for rough action. Constructed of heavy duty . tear and abrasion resistant . materials this training bag is ready to take on your best. Machine washable cover keeps your bag odor free . clean. Great item for burning calories . building lean muscle mass . increasing cardio . leg conditioning & hand-eye coordination. Great workouts . stress relief . and a lot of fun are what you will get with this new item from ESPN