Shop › Double Knob Trainer - Adult 31" - 35" Double Knob Trainer - Adult 31" - 35" $133.00 Double Knob Trainer. Great to keep hands over/under through the zone. Free Customization available when added to Cart! Double Knob Trainer. Great to keep hands over/under through the zone. Free Customization available when added to Cart! Add to Cart Added! Vuk Gripz $18.00 Color: Black Yellow Green White Blue Red Add Added! Bottle Opener Addition $35.00 Add Added! + Upgrade to MLB Prime Pro Maple $32.00 Add Added! You Might Also Like Softball Adult Max Barrel 2.25" $133.00 Model #243 - Adult - Max Barrel Diameter 4.6" $133.00 Model #S318 $133.00 Model #I13 - Adult - Max Barrel Width 2.52" $133.00 Adult 31"-34" Spongebob Theme $162.00
