New PowerNet 2.8" Marquez Weighted Hitting Batting Training Balls (6) Red 16oz 16 Oz:Red full grain American Steer hide still in factory wrapper full grain American Steer hide leather that provides the game ready flexibility Brand New Never Used Package Damaged in Storage Rollerblade brand performance wheel kit works with any brand Includes 8 wheels 16 bearings and spacers 72mm 80A durometer with ABEC 5 skate bearings Performance wheels are smooth and durable Wheels are a great upgrade make sure you rotate to extend the life of the wheel The Weighted Training Balls make sure that you are building the proper follow through on your batting and throwing technique BUILD POWER Develop muscle groups specific to batter and pitcher movements