At least the adhesive backing is worthless on smooth surfaces.

These little bumpers are great and easy to install. Thick bumpers, easy to peel off and adhere.

These are very nice nubs. They work perfect! I like that they are clear and discreet. These stoppers do a great job.

Good adhesive. Just as advertised. Best price around. Does the job as expected. I'm thinking they might keep the coffee maker steady in the rv.