Material: Constructed from high-quality stainless steel, this test tube rack not only provides a sturdy build but also offers long-lasting durability. It is designed to resist both acidic and alkaline environments, ensuring reliability under various lab conditions. Product Features: Featuring an open-frame design, this test tube rack can hold more tubes while allowing freshly cleaned tubes to air dry efficiently. Its practicality and ease of use an essential tool for daily laboratory operations. Stable Triple-Layer Design: The rack's 3-layer design significantly enhances stability, effectively preventing test tubes from shaking. This design minimizes the risk of damage to delicate samples and equipment, providing peace of mind during sensitive experiments.