Purpose and benefit A reliable laboratory support ring designed to hold glassware safely during experiments. The open-ring clamp design makes it quick to place and remove beakers, flasks, and cup glasses while maintaining a stable support point for heating, measuring, or mixing. Durable, water-resistant construction ensures long service life and repeated use in biology and chemistry labs, classroom settings, or home-school experiments. Key features Material: sturdy iron construction for strong, rigid support. Finish: water-resistant surface that withstands routine exposure to liquids and cleaning. Design: open-ring clamp for easy mounting and fast placement or removal of glassware. Compatibility: fits common laboratory test stands and retort stands or can be used with standard support clamps. Reusable and long-lasting: built for frequent use with consistent, stable support. Practical applications (use scenarios) Chemistry experiment: hold a beaker or flask securely above a Bunsen burner or hotplate for safe heating and mixing. Biology or analytical work: support flasks and cup glasses during titrations, filtration, or sample preparation on a test stand. Educational labs: provides stable, easy-to-use support when students perform school experiments or demonstrations. Why choose this support ring Provides a straightforward, dependable way to secure glassware without complex setup. Durable iron construction and waterproof finish reduce maintenance and replacement frequency. Versatile compatibility with laboratory test stands makes it suitable for both professional and educational use.