Markwort Knob Cuff Ez Bat Taper 
Knob Cuff EZ Bat Taper Better Bat Control The Knob Cuff EZ Taper reduces stress on palm and fingers, improves grip, creates better bat control. It fits over original bat grip and creates a perfect tapered handle while it helps to identify your bat. Colors: Black, Royal, Scarlet, Clear, Green, Orange, Purple, Yellow.