4" Cast Iron Closed Ring Support Type_Celestial sized for demonstrating the inverse

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

sized for repeated student use on solid-core and stranded wire ahead of crocodile-clip and terminal-block work

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

4" Cast Iron Closed Ring Support Type_Celestial sized for demonstrating the inverseRugged 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.