
The Chain Clamp by United Scientific uses a 21" chrome-plated brass chain to hold objects from 2" to 6.5" in diameter that are too large or irregular for standard clamps. A tension spring locks the links in place, and a stainless steel rod, 8.5" long and 0.46" in diameter, mounts it on a stand. Labs use it for distillation columns, large condensers, and odd-shaped glassware.