THIS IS THE BALL TO HAVE TO BREAK IN ANY BAT OR GLOVE! ***52 cor 300 lb compression FOR AN IDEAL BREAK IN*** !!!THESE ARE BRAND NEW!! DON'T SETTLE FOR THOSE WALMART BALLS THAT ARE MUSH! GET A QUALITY BALL FOR LESS THAN THE COMPETITION!! Don't roll your bat as it will void your warranty or you could even have your bat broken which is not uncommon. As safe as batting practice is to break in a new bat, put a pocket in that new leather glove or pounding out those dead spots outside of the sweet spot on your used bats. The handle is taped and I have created a knob at the end so it is secure in your hand. Break in your bat or glove now!!! DO NOT USE THIS FOR ANYTHING OTHER THAN IT'S INTENDED USE. IF YOU DO,YOU DO SO AT YOUR OWN RISK. THE MALLET IS MADE FOR GLOVES AND BATS AND I DO NOT RECOMMEND IT FOR ANYTHING ELSE. USE IN A SAFE PLACE