These innovative Double Jumbo Test Tube Racks made of Polypropylene (PP) are used for high capacity storage for tubes, vials and Vessels. Extremely suitable for high throughput labs requiring large sample storage. Manufactured from sturdy and lightweight material suitable for easy movement and transport. Holes are keyed with Molded- in Numbers and letters for easy identification. Due to sheer its size, the rack eliminates the risk of using multiple racks. Use these racks for storing various samples and media. These Racks are available in white and blue.