The heavy weight of our Muscle Ball is designed to force players to have to have to work on proper stickhandling patterns slowly. This allows the player to transition easily to a real puck on ice. The Muscle Ball weighs a whopping 535 grams (almost 4 times the weight of a puck!). <p>Increases wrist and forearm strength</p> <p>Extremely durable and can be used on all surfaces such as: wood, tile, concrete, asphalt, or even carpet</p> <p>The heavy weight helps players refine stickhandling moves because it forces them to do it slower</p>  