Key benefits - Wide compatibility: test tube clamp suitable for flasks, cups and test tubes and can be used on a metal piston clamp stand for versatile setups. - Safe for students: designed to be gentle on hands with a 3-finger clamp for secure yet controlled handling. - Durable, long-lasting material: stainless steel construction with a metal piston clamp holder for dependable, enduring use. - Strong and stable performance: corrosion resistant with high hardness, resistant to deformation for reliable clamping in various experiments. What this includes - Test tube clamp: suitable for flasks, cups and test tubes; can be used for scientific experiments on a metal piston clamp stand. - Laboratory test tube clamp: gentle on hands; safe for students; features a 3-finger clamp. - Piston clamp for laboratory: made of stainless steel for long-term use; piston clamp holder made of metal. - Piston clamp holder: corrosion resistant; high hardness; not easy to deform; strong, stable, 3-finger laboratory clamp. Use scenarios - Classroom experiments: securely hold glassware such as test tubes, flasks or cups during heating, cooling or mixing while teaching. - Student demonstrations: provide safe, controlled handling of glassware during live demonstrations. - Research and analytical work: support glassware in stable, corrosion-resistant setups for routine laboratory protocols.