Does a good job. Only negative was the long spring type brush for the bladder hose - it was a couple of inches shorther than the hose length.
Large brush for cleaning inside the bladder, small brush for valves and mouth piece, and thin brush on flexible wire for cleaning the tube.
This product did a good job of cleaning those hard-to-get-at places and the 'hanger' fits snugly inside the washed bladder to aerate it for faster, more hygienic drying. Although the wired tube brush is not long enough to clean the tube in one go, all you need to do is take it out and insert it in the other end of the tube to repeat the process from the other direction.
Would recommend that you keep the small plastic clips that held it together in the package as keeping it coiled up will make it easier to store.
3 sizes of brushes