It seemed like a good idea, but it squirts all over the balcony - and that's not a good idea.
It's 15 cm in diameter, and it floats.
It's solar-powered, so a bit hit-and-miss but should be OK in summer. If I can find them, there are different nozzles. I know I put them somewhere safe...
Not for resale.
Collection either this weekend or next. (Other times by negotiation.)