Revolutionary Development! The incredible COBRA (Patent Pending) is capable of:Replicating, natural, instinctive throwing skills, 50 MPH plus fastballs &30 meter plus distance accuracy.The COBRA HB is fully adjustable for ball release and throwing angles to optimize control and trajectory and maximize ball speed for accurate, instinctive throws. Incorporates TRS energy capture and release polymer technology. Designed specifically for baseballs (hardballs). Appropriate for trans-radial absence. One model, universal left or right. The COBRA SB11 and COBRA SB12 have all the features of the COBRA SB for baseball, but are designed especially for 11 inch circumference and 12 inch circumference softballs, respectively. Adjustable for overhand and underhand throwing techniques and both fast pitch and slow pitch softball.