Features High Durability: Crafted from top-quality steel, these test tube clip clamps boast an extended lifespan for all your laboratory needs, ensuring reliable performance and handle the rigors of daily use. Erosion Resistance: With their superb workmanship, steel test tube clamps offer excellent resistance to rust, maintaining their functionality and appearance over time in various experimental conditions. Wide Compatibility: These test tube holders can accommodate a range of test tubes, with a maximum diameter capacity of under 5cm, making them versatile tools for numerous scientific applications. Safety Assurance: Designed with user safety in mind, steel test tube clip clamps act as a protective barrier for your hands, helping to prevent heat and chemical spills during experiments. Laboratory Essential: An indispensable tool for any scientific setting, these steel clamping holders are perfect for securely managing test tubes during laboratory experiments, providing stability and ease of use. Features: 1. Made of high quality steel, durable to use. 2. Exquisite workmanship, not easy to rust. 3. The maximum diameter test tube that can hold is less than 5cm. 4. It can protect your hand when doing a experiment. 5. Used for holding test tube in the laboratory.   Specification: Condition: 100% Brand New Material: Steel Weight: Approx. 112g / 4.0oz Whole Length: Approx. 14.5cm / 5.7in   Package List: 5 * Test Tube Steel Clip   Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List