Very useful add on for the brush and crevice tools.
We bought the Triflex cat and dog, the Triflex is expensive and this attachment is the single item that is missing that I think makes a big difference in use. The brush and crevice tool that come out of the box with the Triflex are OK but not flexible enough, this extension tube adds that flexibility especially in the car, shelving, door way ledges etc. It does not work with the small powered brush head though. Pity it is not included in the cat and dog version as standard.