The SANUS Steel Series SF30 is a 30-inch stand for small-to-medium bookshelf speakers up to 25 lbs. Its extra-large steel base includes optional carpet spikes for superior stability on any surface. Twin heavy-gauge steel pillars feature a concealed wire path and resonance damping rings, and they can be filled with sand or shot for added mass. The 6- by 6.5-inch top plate offers brass studs and neoprene pads for speaker isolation.