Mine arrived yesterday and have already had a test-drive.
They certainly stay in place so it is nice to pick up a piece of furniture and not have to move the tabs as a separate operation. They are also a little larger than standard foil tabs, so accommodate larger legs without doubling-up.
Ours have had a test run and so far impressed on the larger feet of furniture.
The tabs featured on the images had two screw fixings and a ball stud to cover.
A good solution for saving time tabbing out some furniture, particularly if you have to move it around more than expected.
Can't get on with these ... they just tear too easily for Mr Clumsy Fingers here. Something a bit stronger would be nice as it's one of the only items I need to buy elsewhere - along with deluxe overshoes as the standard one just seem to rip too easily and barely last me to the end of a single job.