Prestacycle's Pro Presta head features a patented auto-lock mechanism that securely attaches to the Presta valve without pulling or twisting. It seals without clamping the valve and has easy-grip sides for pressing the red release button, ensuring an instant, no-loss disconnect for accurate tire pressure. Designed for professional use, it includes a durable steel head and a 90-degree angle for easy access. Compatible with all Prestaflator tools (except ECO), it upgrades most premium floor pumps, eliminating the need for unsafe clamping and thread-on heads.Patented auto-lock presta headRed button offers zero-pull soft releaseNo clamping of lightweight tubeless valvesNo pulling on tubeless valves or coresSafest head for all types of presta valves, including tubeless and tubeless-conversion valvesWill not harm newer lightweight performance valvesDurable Steel body protects head from drops Prestacycle Pro Presta Head Pump Part UPC: 689466922882