Baseball/Softball Bat Knobcuff Comfort All-in-One Grip Stress Reducer, Choke-up Bat Identifier Baseball/Softball Bat Knobcuff EZ Taper. Superior grip & comfort, Reduces stress on palms & fingers. Use as a choke-up. Improves grip. Better bat control. Saves bat tape. Easy on, off. Identifies your bat. Used by Players in Little League to College & Pro