FDA-approved for intraoral use. Lightweight, ergonomic design. Fully autoclavable. Easy to install to standard air line and includes standard hookup components. In-line stopcock for quick disconnection: operator can easily dismantle for storage and transport. Easy-to-replace tungsten-carbide nozzle. Index finger-control valve operation is suitable for right-handed or left-handed operator. Unique ratchet-controlled tip rotation avoids fuss of loosening and retightening locking collars. Increases bond strength by more than 300% to all dental materials. 1-year warranty.