Porcelain Beehive Shelf, 7.5cm, Glazed

This 7.5cm porcelain beehive shelf is fully glazed on both inside and outside surfaces to resist moisture absorption and chemical interaction while preventing sticking or residue buildup. The circular shelf features a central hole for gas flow or stem support in laboratory heating and filtration setups. The shelf is used to support crucibles, funnels, or other vessels over a Bunsen burner or steam bath during heating, filtration, or collection procedures. The durable porcelain construction withstands thermal shock and repeated laboratory use.