silwy® coffee cup set of 2, magneticNo more falling, slipping or clinking cups The mug from silwy stands securely even on wobbly surfaces thanks to the embedded magnet and the nano gel pads supplied. They can be removed without leaving any residue and are washable. So you can use them as often as you like on any smooth surface. The coffee cups can of course also be attached to the metal strip that you can get for the folding shelf in our store.