[Advanced Design ]:These replacement tips are greatest for every day use to clean your teeth,improve your oral health,various accessories meet your diverse needs. [High Compatiblity]:Those replacement tips are compatible with most for WaterPik water flossers,such as Kids Water Flosser,Cordless Professional, Ultra Water Flosser, Aquarius Professional, Cordless Plus, and all Designer Series Water Flossers. [Deep cleaning]:Replacement flosser tips for universal use and to clean deep between teeth and below the gum line. and they are twice as effective as string floss for improving gum health. [Replacement Tips Changing]:It is recommended that standard nozzles and tongue cleaning nozzles be replaced every six months and other nozzles replaced every three months. Material: plastic colour: As shown Package Contents: 1 set x Replacement Tips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.