primarily designed for lab test tube storage, this plastic cylindrical test tube rack can also be effectively applied as an inverted test tube drying rack, offering multiple usage and adapting to experimental procedures packaged in a 2-pack, each containing 66 columns, these shelves can accommodate multiple test tubes simultaneously, making them ideal for labs and research environments with multiple test tubes the rack is constructed of thickened PP material, ensuring a sturdy structure that ensures stability, straight alignment, and long-term durability; It is , easy to move and place, and adapts to common laboratory environments, and is reusable the rectangular rack features a structure with smooth, rounded corners; The optimally spaced columns accommodate common test tube sizes, eliminating the need to worry about mismatched test tube sizes and meeting most laboratory test tube storage requirements the compact design takes up little countertop space, allowing for optimal placement within limited lab space, helping to keep work surfaces neat and organized; When not in use, the racks can be stacked to save storage space Features: The neatly arranged columns allow for easy insertion and removal of test tubes without complicated operations, making it suitable for users of all skill levels. The drip mechanism allows excess liquid to drip naturally after the test tube is placed, preventing residual liquid from affecting the cleanliness of the test tube and helping to keep the test tube dry. Specifications: Material: pp plastic Color: blue Size: about 6.7 x 3.7 x 2.5 inch / 17 x 9.5 x 6.3 cm 2 x Blue plastic test tube rack Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Package Contents: 2*pcs test tube stand Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.