The Smarthockey 3oz MINI Speed Ball helps players develop lightning quick, soft hands. At 2.8 oz (79 g), the MINI is less than half the weight of an ice hockey puck and its slightly smaller than a golf ball (but doesnt bounce like one). Its a more durable, true feel version of a wooden Swedish stickhandling ball. In other words, IT DOESNT BREAK, ITS HEAVY ENOUGH TO FEEL ON YOUR STICK AND IT ROLLS FASTER. Its just BETTER. The patented MINI 2-piece dynamic core technology combines an ultra durable Surlyn shell with proprietary core found in the ORIGINAL. The solid core covered by a Surlyn shell eliminates any pliancy or "smushing" of the ball between the stick and the training surface. The combination of the Surlyn shell and the weight (2.8 oz or 79 g) makes the MINI roll faster than a puck slides on a clean sheet of ice. The proprietary core matches the dull bounce of a pucks vulcanized rubber. Warm up before games and practices or train in your garage, basement, on a tennis court, basketball court, paved street or driveway. As the name suggests, its the only ball players can use for stickhandling, shooting and passing drills.