Iron Laboratory Support Rings — sturdy, reliable ring supports for lab stands Key benefits Securely holds glassware: closed-ring design provides a stable platform for beakers, flasks, funnels and other common laboratory vessels. Integrated clamping: a built-in clamp at the ring end fastens directly to your test stand so you do not need an additional clamp or support accessory. Positive locking: thumb screw tightens the ring firmly to the stand for steady, repeatable positioning during experiments. Durable construction: made from iron for reliable, long-lasting support in biological and chemical lab settings. Features and compatibility Function: standard support ring for mounting on laboratory/test stands to carry various cup glasses, flasks and similar apparatus. Clamp type: closed ring with an end clamp that fixes the ring to the stand; thumb screw provides a simple, tool-free locking action. Material: iron construction designed for everyday laboratory use. Use environment: suitable for biological and chemical laboratory test stands and general bench setups where stable vertical support is needed. Typical applications Heating setups: hold flasks or beakers over a heat source during reflux, boiling or sample heating when paired with a ring stand and burner. Filtration and separations: support funnels and filter assemblies during vacuum or gravity filtration procedures. Routine support tasks: stabilize glassware during titrations, transfers, or temporary mounting of apparatus for observation and measurement. Why choose this ring Integrated clamp eliminates the need to buy a separate clamping accessory. Thumb screw makes attachment and adjustment quick and secure. Straightforward, compatible design for use across biological and chemical laboratory test stands.