This product is designed for routine cleaning and maintenance of laboratory glassware, particularly test tubes of varying dimensions. Manufactured by Canrd under model MA-CM-TO-01, it offers three size variants—large, medium, and trumpet—to accommodate different tube diameters and cleaning needs. The material composition is typical of standard laboratory brushes, ensuring mechanical durability and compatibility with common solvents and detergents used in research settings. As a general consumable item, it supports contamination control in sample preparation, synthesis, and analytical workflows. The selection of an appropriate brush size helps optimize cleaning efficiency while minimizing residue and physical wear on glassware.