So ... I offered this toy to my darling to make it a fun lil ... Apparently he gets off !! he enjoys in seconds !! I wanted to know what it was, he told me that it was the same feeling as in a vagina .. !! (And yes, it is pretty straightforward ^^) In short, the next day I re-tested, "cold" and ..malgré while he has not take long .. But it's not usual !! If the size of the machine is sufficient, the easy grip ... and pressure levels appeared to be their effect! By cons I'll need my arm muscles as completely closed, making quick back and forth, it gets tiring !! XD Otherwise maintenance is easy, simply empty it and rinse it with hot water silicone (for the moment I have not put products for washing, for fear of spoiling ..). The delivery was quick and unobtrusive. So basically, we are very satisfied !! :)