The TWIST bottle revolutionized the water 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 easy "TWIST" movement and just as easily reattached by bringing together the magnetic holds, which include a mechanical locking system. If the bike has no thread inserts at all or if they are already blocked, the TWIST bottle 590 comes with the TWIST uni base. This universal frame adapter can be easily attached to any pipe with a width of 28 - 62 mm thanks to the long TPU zip ties. The smooth rubber back of the universal bike bottle holder protects your frame against scratches and helps to hold the uni base in place. Includes the TWIST uni base for attachment to any tube with re-closable zip ties. - 590 ml / 19.95 fl oz - Always BPA-Free & BPS-Free - Leak-proof, self-sealing bottle cap with high-flow valve - Includes removable dust cap - Includes removable connector - Includes TWIST Universal Bike Base for attaching to any tube - Compatible with all TWIST Bases - Bottle is dishwasher-safe without Connector - Proposition 65 Approved