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 easy “TWIST” movement and just as easily reattached by bringing together the magnetic bolts, which include\'s a mechanical locking system.FIDLOCK TWIST bottle and Base kit 590ml Black How it works:The bike bottle comes with a connector fitted with two magnets and an internal mechanic latching system. The two magnets find their counterpart magnets in the bike base automatically and guide the bottle into the right position.With an audible “click”, the mechanic fixture comes into place to hold the bottle securely in place.To release the bottle, it only needs a simple clockwise TWIST. The bike base is mounted on the bike to the bottle braze-on fixtures.Fidlock Twist Bottle and Bike Base Features590 ml / 20 fl oz volumeDishwasher-safeBPA-free polypropyleneFits all TWIST basesMounting to the braze-onsBase weighs only 16 g / 0.56 oz