For all you science folks out there, this stainless steel support ring is a lab essential! With a 50mm outer diameter and 125mm length, it's perfect for holding flasks, beakers, and other glassware during experiments. The closed ring design keeps everything securely in place - no worrying about expensive glassware slipping and breaking mid-experiment. Made from corrosion-resistant stainless steel that can handle heat and daily use without rusting or deforming. Installs easily on standard lab stands without any extra tools, and the adjustable nut lets you position it at exactly the right height. Great for distillation setups, chemistry demonstrations, physics experiments, or any situation where you need stable support for lab equipment. Whether you're setting up a home lab, teaching students, or working in a research facility, this simple but crucial tool makes experiments so much safer and more organized. It's one of those basic lab items that you'll find yourself using constantly once you have it!