Bis-Tris precast gels are widely used in protein electrophoresis for separating proteins based on their molecular weight. The 4-12% gradient allows for optimal resolution of a wide range of protein sizes, making it suitable for analyzing complex protein mixtures. These gels are particularly useful for applications such as western blotting, where precise separation of proteins is critical for accurate detection and quantification. The 15-well format enables simultaneous analysis of multiple samples, increasing efficiency in high-throughput experiments. The 1.5mm thickness ensures sufficient protein loading capacity while maintaining sharp band resolution. The glass plate design provides durability and stability during the electrophoresis process, reducing the risk of gel damage. These gels are compatible with various staining and imaging techniques, making them versatile tools in protein research and diagnostics.