Bis-Tris precast gels are widely used in protein electrophoresis for separating proteins based on their molecular weight. The 8-16% gradient is particularly effective for resolving a broad range of protein sizes, making it suitable for analyzing complex protein mixtures. These gels are commonly employed in research laboratories for applications such as Western blotting, protein characterization, and quality control in protein purification processes. The 15-well format allows for multiple samples to be run simultaneously, enhancing throughput and efficiency. The 1.5mm thickness ensures optimal resolution and minimizes the risk of overloading, while the glass plate construction provides durability and stability during electrophoresis. Bis-Tris gels are preferred for their superior performance in maintaining protein stability and reducing protein modifications during electrophoresis.