What are the circular discs people use on components?


I often see these Circular metallic discs people place on their components. What are they and what are they supposed to do? Are they magnets attempting to reduce noise and are these really necessary? 

emergingsoul

Showing 2 responses by mrdecibel

I 2'nd the door weights on Amazon. They are actually called door stoppers. Type in the search bar : Stainless Steel Door Stopper (3 Pack). I use them with great success. Enjoy ! MrD.