[Size]: Diameter 2.5″.
[Material]: This laboratory support ring is made of high quality iron, high temperature resistant, durable.
[Precision Design]: The circular part of the rubber package can protect your glassware.
[Application]: The Support Retort Ringis suitable for biological and chemical laboratory test bed to support a variety of beakers, flasks, etc.
[Convenient organization and storage]: Packed in a plastic bag with label.