hook ball uses your finger tip to hook, thats why its call hook
ball...it would be quite heavy(11-15lbs) to have more impact. will
roll in a curve trajectory.....sraight ball just throw straight
lor......or throw from extreme left to right to centre is
easier.....just make sure dun t]wist ur hand can liao.....all
bowlin alley house ball are for straight balls....dun have to
buy