Park Tool BO-4 Corkscrew Bottle Opener KIDS always refer to the instruction

always refer to the instruction manual

Compatible with handlebars measuring 16 mm to 21

5" (for mtb) and 650b have the same rim diameter

Internal Width 25mm 25mm

11-13-15-17-20-23-26-30-34-39 (11-39t)

Park Tool BO-4 Corkscrew Bottle Opener KIDS always refer to the instructionThe BO 4 is a combination corkscrew and bottle opener complete with knife foil cutter. Made in the tradition of our premium quality fold up tools, it folds for storage and features all stainless steel mechanisms housed in a forged aluminum case. This is a top quality beverage tool perfect for the workbench, toolbox or wine bar. Features Corkscrew, bottle opener, and foil knife Stainless steel mechanisms Forged aluminum case Mfr Claimed Weight TBC