We've paired our most popular lab stand, support rod, and vessel clamp for your benefit. The stainless steel lab support rod and cast-iron support base provide maximum strength and durability so you can mount your overhead laboratory mixer with confidence. The chain clamp has a quick slip-on-chain connection and a large easy-to-turn adjustment knob. The flexible chain is able to hold circular and irregularly shaped apparatus, up to an 11" (28 cm) diameter, firmly in place while mixing.