Not a must have but a must use after having a session with the masturbator .
To be frank i would say it's kinda expensive for a bottle like this size amount , but for the sake of hygiene and i think that's make it a good reason to spend that extra cost for toy maintenance .
A very easy straight forward to use cleaner , not soappy nor sticky at all. After spraying in and out of the masturbator , gently rub it with your hands and rinse it with running water will do .
As I'm a daily masturbator user that resulting me to use it on a daily basis .
I bought it for close to 2 weeks now and it left half bottle , i estimated this bottle can last me for a month or close .
Overall would give it a 3 star for the ease of use , minus 2 star off for being so. Ex for a bottle tiny like this ..
Excellent cleaner to keep my Fleshlight clean and bacterial free.