I have a problem with gums and you need 2 times a day to wash gums, on trips it's a problem. Chose this device, because it is light, comfortable in the hand, unlike electric, does not require recharging. Today I received and made sure that the device perfectly copes with its main task. Definitely recommend, as a portable erigator, which can be taken with you everywhere. Delivery of 3 Nellie, packed in two layers of polyethylene, a branded box and a Loy navel, everything came in safety.