must have [SEP] I specifically tested 3 weeks to give honest review. so what we have:<br />1 - a well-packed beautiful box (small)<br />2 - instructions with pictures - the irrigator is easy to use with just two buttons you are already a "dentist"<br />3 - brush your teeth with high quality (I can even say that you do not need a usual brush and paste)<br />4 - you need to get used to it as the procedure remind professional teeth cleaning<br />5 - 4 nozzles - the whole family can use!<br />6 - 30-60 seconds and teeth are clean<br /><br />p.s. My dentist recommended to buy a water flosser as at the moment it is a very useful thing, which saves money, time and supports your teeth health!<br />Advise -  do not use soda or other elements with water, it will clog the tubes and you will have to buy a new irrigator. only water! if you have sensitive gums - be careful and choose the most gentle mode.<br />I am pleased with the quality of the product and the price!