They do what they are meant to do- protect the porcelain floor. They stick well, just make sure to give it a minute after putting them on before moving to around.

At least the adhesive backing is worthless on smooth surfaces. Black felt from this outfit sheds a lot of tiny black fibers.

Price is so much cheaper than the big box store. Outstanding design. I know others commented on that, but i don't see it and i am very particular.

Easy to apply but suggest you make sure were you want to place them before adhering. The adhesive is aggressive and they were easy to apply. Can't be any easier to install.

Very minimal and poor adhesion to any type of plastic, rubber/vinyl (i. E. Vinyl) does not soften the * sound.