NaviTip 31 ga Tip with Double Sideport Irrigator 27 mm, 50pk Double sideports deliver irrigants safely, minimizing the possibility of chemicals being expressed past the apex. One of the world's smallest cannula navigates the most intricate canal spaces. Available in 21 mm and 27 mm tip lengths. Single-use only. NaviTip delivery tips are available in four lengths and two gauges to easily deliver endodontic sealers, irrigants, and other medicaments of varying viscosities just short of the apex. The cannula of each NaviTip tip is slightly rigid through the base and center, but flexible at the tip to allow for easy navigation of curved canals.