CRY-AC is a hand held device. Unit comes with 4-spray tips with apertures (.04-.016 inches) a 20-gauge straight spray and a 20-gauge bent spray for more accurate, controlled treatments. Fingertip trigger provides maximum control and easy viewing; rotates for left-handed users. Streamlined relief valve maintains constant operating pressure for consistent, accurate freezing. Polypropylene base provides extra stability while polypropylene cover and collar insulate user’s hand