Secure and stabilize your laboratory glassware with the WaysideLab Boiling Flask Cork Support Ring. Made from durable compressed cork, this lab ring features a concave recess that cradles round-bottom flasks and dishes, providing reliable support during heating, cooling, or storage. The natural cork material offers a stable, non-scratching surface to protect your glassware, while its lightweight and heat-resistant properties make it a versatile addition to any lab setup. Designed for repeated use, this support ring accommodates flasks ranging from 10 to 100 mL