The Water Jet is the #1 seller in Japan for one reason. It is the most recommended by dentists for defending against tooth decay. How important is it to clean your teeth deep down? ItOs far more important than youmay realize. Speak with any dentist today and theyOll all tell you nearly the same thing. Brushing and flossing are simply not enough. No matter how thoroughly you floss you can never reach every nook and cranny of the mouth. Getting below the gum line ismore important than ever to defend against the onslaught of periodontal disease. Not only that, but the massaging of your gums is nearly as important as cleaning your teeth. Regularly massaging your gums promotes regular blood flow that is important tothe long term health of your teeth. The Water Jet provides a strong pulsating stream of water that flushes away hard to reach food particles while providing deep gum massage. That means youOll get much needed blood flow to areas often neglected withnormal brushing and flossing. Includes 4 separate, color coded nozzles that easily connect to Water Jet holder. Perfect for a family of four. Water tank holds enough water for 1.5 minutes of use and has a water pressure regulating switch. Clean wherefloss and brushes canOt. With the #1 selling, #1 dentist recommended Water Jet you'll be on your way to whiter, brighter, healthier teeth and gums. The Water Jet gives you a deeper clean than brushing and flossing. Fight plaque and periodontaldisease with the #1 teeth cleaner and gum massager in Japan Covered nozzle storage rack Uniquely designed cover An artistic water reservoir design Water pressure control Conveniently located water output switch for Water Jetoperation. Unique design for wall mounting. Four seperate nozzles. Deminsions 7" x 6".8 x 5".7 Power source 110/30w Water pressure : Max 0.13~0.16N Working time : 1.5 min. Tank volume : 500ml, 1pint. Pump frequency : 1200 pulses.