Introducing our cutting-edge Backrest Mechanism Biode SHB2057A, a game-changing innovation designed to revolutionize sofa functionality. This adjustable front and back moving hinge is perfect for enhancing comfort and convenience. As a factory, we pride ourselves on delivering top-quality products, and this mechanism perfectly embodies our commitment to craftsmanship. Experience unparalleled ease and flexibility as you effortlessly adjust your sofa's backrest to the perfect position. Unleash the true potential of your living space with our remarkable SHB2057A Backrest Mechanism.