Molded of strong, rigid white melamine, the rack consists of a circular base, screw-in column and a support disc held in place by a screw clamp. The support disc is fully adjustable to any desired height up to 21 inches. Support holes for funnels are open front type for easy removal and placement of separatory funnels. Includes 18 insert clips to accommodate different sized funnels. Shipped unassembled.