The 2PCS M377 Fuser Lower Sleeved Pressure Roller is a perfect fit for your HP 377 printer models, such as the M452, M453, M454, M478, M479, and M477. These rollers provide optimal pressure and alignment, ensuring smooth and consistent printing. Made of high-quality materials, they offer durability and reliability, making them an excellent choice for commercial use or daily printing needs. With adjustable sleeves, they maintain the optimal fit for different paper sizes and document thicknesses, providing a hassle-free printing experience. Trust in our product's compatibility and effectiveness, and invest in the best solution for your printer.