Hi all, just want to share that this is really a great tool for cleaning your lily pipes. Previously, before I got this, I found it very hard to use a flexible brush (not flexible enough to bend into curve part) to clean the lily pipe outflow and also not reach the inner curve parts enough to pull out those stubborn algaes stuck there (must be careful not to scratch or break the glass!) without taking out the whole thing and soak in bleach. With this, everything is a breeze and my lily pipe is back to clean and shiny again! Yes, its very expensive for a brush (if you get it local in SG) but worth it! Cheers!