3-1/2 SqueakGuard Hinge, 1/4 radius, Matte Black. National Hardware's squeak-guard hinges enables doors to pivot on one edge as they silently open and close. Available in matte black and satin nickel. Three pack of hinges included. Instructions and mounting hardware included for installation. Surface-mounted application for easy DIY installation. Outlasts competition by three times, 30 years noise-free. Military-grade superior bearing with 5 times strength of steel for high-quality performance. National Hardware's Lifespan Limited Lifetime Warranty.