Swiftstik 30-inch Youth Size Hand Eye Training Bat with 12 Golf Size Practice Balls by Spalding Ideal training aid for coaches and parents and can be used indoors or outdoors by any level player Patented adjustable foam head matches the "sweet spot" of your game bat and gives instant feedback when hit correctly Ridged cushioned grip helps isolate the bat in your fingers helping to build bat speed and muscle memory Measures 30" in length and weighs 12 oz. and is guaranteed for life Includes 12 golf-ball size practice balls