Tris-Glycine precast gels (4-20%, 10 wells, 1.5mm, glass) are widely used in protein separation and analysis through SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis). Their gradient concentration (4-20%) allows for the resolution of a broad range of protein molecular weights, making them ideal for analyzing complex protein mixtures. These gels are commonly employed in molecular biology and biochemistry labs for applications such as protein purity assessment, molecular weight determination, and sample preparation for downstream techniques like Western blotting. The 10-well format is suitable for running multiple samples simultaneously, ensuring efficiency and consistency. The glass plate construction provides durability and clarity for accurate visualization of protein bands using staining methods. These gels are particularly useful in research, diagnostics, and quality control processes where precise protein separation is critical.