600 ml/ 20.29 fl oz bottle for magnetic-mechanical bottle mounting system. The TWIST bottle 600 revolutionized the bike bottle. Without the conventional bottle cage, this magnet-mechanical bike bottle system offers a new kind of freedom in handling and application. It is simply released from the bike with an easyTWISTmovement and just as easily reattached by bringing together the magnetic bolds, which include a mechanical locking system. Note! The included Bike Base mounting piece is attached to the bottle holder holes on the frame. If your bike does not have these mounting holes, you can order the bottle separately plus a Twist Vario Base, Uni Base or similar. 600 ml / 20.29oz volume Dishwasher-safe BPA-free polypropylene The bottle fits all TWIST bases