This product is designed for laboratory use, offering a set of plastic earphone-shaped containers available in three capacities—30 mL, 60 mL, and 90 mL—to accommodate varying sample volumes. Made from durable polymer materials, these consumables are lightweight and chemically resistant, suitable for storing, mixing, or transporting experimental reagents and small-scale preparations. The compact in-ear form factor facilitates easy handling and stacking in confined workspaces, making them a practical choice for research settings that require disposable or reusable vessels. Commonly used in materials science, battery electrolyte testing, or general chemical experiments, each size corresponds to a distinct model (MA-CM-TO-005801 for Large, MA-CM-TO-005802 for Medium, MA-CM-TO-005803 for Small) for precise inventory management. This product combines functional design with reliable material properties to support routine lab workflows.