Lab stand retort flask clamp: acid resistant, rust-proof and sturdy. Securely grips retort flasks on standard lab stands, providing stable, hands-free operation during heating, reaction setup or reflux. Support ring: acid resistant, rust-proof and sturdy construction. Delivers reliable on-stand support for glassware and vessels; quick to adjust and compatible with typical ring stands. Lab support rings: iron construction for durability. Built to withstand routine laboratory use and the weight of attached vessels, offering long-lasting performance. Iron ring clamp: easy to use. The iron ring clamp fixes and supports a variety of lab equipment, enabling flexible and secure setups on a ring stand. Applications and benefits - Secure heating and reaction setup: clamp and rings hold flasks and beakers steadily on a lab stand, reducing the risk of spills. - Flexible apparatus configuration: compatible with standard lab stands and ring stands to mount condensers, funnels, or other glassware. - Durable, low-maintenance design: iron construction provides lasting strength and reliable performance in daily lab use.