The CON-TROL-CURE™ Mixer Support Stand boasts a heavy steel base with a 5/8" x 30" zinc-plated steel support rod firmly fastened by a lock nut. Base accommodates vessels up to 18" diameter. Suitable for our complete line of stirrers. The CON-TROL-CURE™ Mixer Support Clamp is ideal for attaching, stirrers, extension rings, and more to support all stirrers and stands. Zinc-plated steel, our strongest clamp. One hole is 5/8", other is 3/4".