Very heavy duty mounts. Metal feels very solid and I have no fear of them falling. 4 large screws hold it in. Only reason I don't give it 5 stars is they advertise it as low profile and that it is not. These a very large and will put you speak 6-8\ out from the wall. These are definitely made for large speakers or in an area where aesthetics are. It much of a concern as you can't hide these things. If you are looking for tough mounts that can move in every direction then these are great."