Description Made of metal, ensuring it durable, resistant, rust proof and sturdy constructed. Commonly used for reactions, filtrations, and experiments in laboratories, factories, schools, hospitals, researches, and so on Features - Material: - Size:. 00X6. 50X2. 00cm/ 5. 89X2. 55X0. 79 inch - Color: As shown Laboratory Support Stand Clamps Iron Lab Support Retort Ring for Laboratory Experiment Supplies Made of metal, ensuring it durable, corrosion resistant, rust proof and sturdy constructed Commonly used for chemical reactions, filtrations, and experiments in laboratories, factories, schools, hospitals, researches, and so on Durable Support Retort Ring Commonly used for chemical reactions, filtration, and experiments in laboratories, factories, schools, hospitals, researches and so on. This Iron Labs Support Ring are suitable for biological and chemical laboratory test bed to support a variety of beakers, flasks, etc.