The Prestaflator is designed with a long-throw trigger valve. Use a light squeeze or brief, rapid shots to gently inflate Bike tires to your desired pressure over a few seconds. A full squeeze on the trigger provides maximum pressure for seating tubeless tires. The dial pressure gauge lets you follow your progress visually. Designed for MTB & Road tires with a wide range of pressure requirements. Prestacycle Prestaflator Pro Shop Air Compressor Head UPC: 689466331097