Given that this is not a cheap item, I am a little disappointed with it. I caught it just before it fell off today when attached with the hook/clip so could easily have lost it. If using the caribiner hook the bag twists and turns the wrong way round - it needs another loop so that it hangs the right way. One day when I have nothing better to do I will modify the fittings!
Bought these in a moment of weakness at Ikea for something like £1.99 - even at that price they were a waste of money. The lids don't fit, they are not airtight or watertight. Like most things I have had from Ikea they are a waste of time!