Bis-Tris precast gels are widely used in protein electrophoresis for separating proteins based on their molecular weight. The 15% concentration provides optimal resolution for a broad range of protein sizes, making it suitable for analyzing complex protein mixtures. These gels are particularly effective for studying low to medium molecular weight proteins, ensuring sharp and clear bands. The 15-well format allows for multiple samples to be run simultaneously, enhancing efficiency in high-throughput experiments. The 1.5mm thickness ensures sufficient sample loading capacity while maintaining consistent separation quality. The glass plate construction provides durability and stability during the electrophoresis process. These gels are commonly used in applications such as Western blotting, protein characterization, and quality control in biotechnology and pharmaceutical research. Their precast nature saves time and reduces variability, making them a reliable choice for reproducible results in protein analysis.