This Carbon Film on Copper Grid is precisely engineered for high-quality negative staining, a widely used method for visualizing proteins and macromolecular complexes at the electron microscopy (EM) level. Featuring a 200 square mesh and standard thickness, these grids provide a stable and uniform substrate crucial for optimal sample preparation. Each grid undergoes rigorous quality control, including optical checks and batch testing in the EM, ensuring reliable performance for sensitive imaging. They are supplied as a carbon film on a robust copper grid, combining excellent conductivity with structural integrity. Designed to facilitate consistent staining and clear visualization, these grids are indispensable for achieving high-resolution images of biological structures. This product comes conveniently packed in a grid storage box, ensuring protection and organization. Each pack contains 50 grids, offering an ample supply for demanding research workflows.