Flask stand, Made of fine particle compressed cork, these rings are designed to support round bottom flasks, beakers, dishes and more, Small cork stand has a diameter of 100mm and holds 250ml to 2000ml round bottom flasks
Support Ring, Steel Rod, Steel rod, zinc-plated support ring with attached boss head clamp and thumbscrew, Distance from support to center of ring is 4-1/2in for all sizes, Diameter: 3