Bis-Tris precast gels (8-20%, 15 wells, 1.5mm, glass) are widely used in protein electrophoresis for separating proteins based on their molecular weight. The gradient concentration (8-20%) allows for optimal resolution of a broad range of protein sizes, making it ideal for analyzing complex protein mixtures. These gels are particularly useful in applications such as Western blotting, where precise separation of proteins is critical for accurate detection. The 15-well format enables simultaneous analysis of multiple samples, enhancing efficiency in high-throughput experiments. The 1.5mm thickness ensures sufficient protein loading capacity while maintaining sharp band resolution. The glass plate construction provides durability and stability during electrophoresis, ensuring consistent results. These gels are commonly employed in research, clinical diagnostics, and biotechnology for studying protein expression, post-translational modifications, and protein-protein interactions.