These Strong non-slip transparent plastic hooks are terrific for holding my plugs from my appliances when I have them unplugged. Now I can put them in this hook and I will know where the plug is and it won't just dangle off my counter! It also works for my keys by the door. These are transparent so they don't mar the look of your walls. I used mine on the ceramic tiles in my kitchen with great success and also beside my door on the wmooth wood moulding. (it's actually plastic)