Hip spin striker sports performance trainers, its like they say its all located in the lower back. Hip striker and depending on the training, you will turn your tea easily and quickly increase the rotation of your lower back, and increases your strength. Hip striker has to be adjusted in addition, it allows you to develop your muscle memory improves. It is a ball for a faster swing, and strong to produce the distance of your shot, and more. Just toss your hip and unleash the power of simple, unique training methods, rotating to hit. Hip and training with a different, train and more. The Power, And To Take Your hittoge-muohusutoro-ku for more kick for hip striker, striker – One hippusutoraika-padoru fittowanberuto for up to 44 in. Waist – 3 Indoor/Outdoor Training Ball