... reach over 12000 R.P.MFUNCTION-Perfect exercise gadget for sports like golf,tennis,squash,cricket,baseball,bowling,basket ... wrists,hands,forearms,biceps,triceps,ligament and shoulders.-Great benefit for musicians,guitarists, pianists,drummers.-Rehabilitates sore muscles and joints ... a session and record, each 100 rotations as one unit, for example 8650 revolutions will display as 86.-Real time ...