Bis-Tris precast gels are widely used in protein electrophoresis for separating proteins based on their molecular weight. The 12% concentration is optimal for resolving a broad range of protein sizes, making it suitable for applications like Western blotting, protein purification, and analysis of complex protein mixtures. The 15-well format allows for multiple samples to be run simultaneously, enhancing efficiency in research and diagnostic labs. The 1.0mm thickness ensures clear resolution and minimal diffusion, while the plastic backing provides durability and ease of handling during gel transfer or staining processes. These gels are particularly favored for their consistency, reproducibility, and compatibility with downstream applications.