Advantage: The stackable design allows for efficient use of storage space by enabling vertical stacking of multiple racks. Constructed from durable plastic, it is designed to withstand daily use in busy laboratory environments. Each hole features a scale for easy sample positioning, allowing quick and efficient retrieval or placement of vials. Instruction: Insert vials into the designated compartments of the vial holder. To access a specific vial, locate it within the rack and gently remove it. Application: This test tube rack offers a convenient and organized solution for storing and organizing autosampler vials, helping to streamline laboratory workflows. Suitable for use in HPLC, LC/MS applications, high-throughput analysis sample preparation, and general lab research. Provides versatility to meet various laboratory needs. Note: Ensure the tube rack is completely dry before reuse or stacking. Specification: 20ml Color: White Material: Plastic Package Contents: 1 x Test Tube Rack Note: The package includes only the items listed above; other products are not included. Due to lighting effects and differences in display screens, the color of the item may vary slightly from what is shown in the picture. Measurement may vary by 1-3 cm.