DentJet Professional Dental Care Kit Teeth Cleaner Water Pick for Teeth with 7 Nozzles is a very cheap unit and does not floss your teeth properly and there is no pressure in the water flow even at max. I would never recommend this item to anyone if you are serious about oral care. I have used a Waterpic flosser in the past and found it excellent - it was more expensive than the DentJet but it was well worth it so I will be going back to that brand. I thought $60 for the DentJet was not exactly cheap (medium range price) but I was misled, so you are better to wait till you can buy a quality product. There is a saying (you get what you pay for) how true. I thought Amazon was a trusted outlet and would vet the products it sells on its website but looks like that I was wrong, Don't know if I will ever use their website again (once bitten second time shy).