Feature:1. Spread evenly, no splash, special design to avoid sucking backward and avoid blocking.2. 2 Holes u0026 4 holes for selection, you will find the one you need here.3. 360 Rotation, helps clean your teeth effectively u0026 thoroughly.4. Handy size, compatible with various sizes of other units.5. Simple to plug in and out, easy to clean it up after use.Specification:Designed for dental use only.Features:Spread evenly, no splash, special design to avoid sucking backward and avoid blocking.2 Holes & 4 holes for selection, you will find the one you need here.360° Rotation, helps clean your teeth effectively & thoroughly.Handy size, compatible with various sizes of other units.Simple to plug in and out, easy to clean it up after use.Specifications:Type: Dental EquipmentMaterial: MetalColor: SilverModel: 1# (2 Holes), 2# (4 Holes) (Optional)Item Size: Approx. 20 * 5cm / 7.87 * 1.97inPackage Size: Approx. 16 * 9 * 5.5cm / 6.3 * 3.54 * 2.17inPackage Weight: Approx. 172g / 6.07ozPackage List:1 * Dental Air Prophy KitPackage List:1 * Dental Air Prophy Kit