4" Cast Iron Closed Ring Support Type_Celestial sized for fine ductile materials

sized for fine ductile materials including nylon

sized for demonstrating the inverse pressure-volume relationship of a gas at constant temperature

Steam-sterilizable polypropylene pipette rack holds 12 pipettes horizontally for bench storage and autoclaving in molecular biology laboratories

designed for classroom identification drills and examination preparation

a low-cost option for introductory mechanical-advantage demonstrations

4" Cast Iron Closed Ring Support Type_Celestial sized for fine ductile materialsRugged cast iron closed support ring with an integral screw clamp, combining a 4 inch inner diameter and a rod grip from 5 16 to 5 8 inch for holding wire gauze and vessels over heat.