【Product Title】:Adjustable Sofa Backrest Multifunctional Hinge Bracket, designed to provide optimal comfort and adjustability for your sofa 【Material】:The Sofa Backrest Hinge Crafted from metal, this adjustable sofa armrest and backrest hinge bracket ensures long-lasting performance and stability for your furniture 【Versatile Functionality】:This Sofa Connector Designed with multifunctional capabilities, this hinge bracket allows for forward and backward movement, providing customizable comfort for your sofa setup. 【Dimensions】:Adjustable hinge bracket with a product size of 80x140mm and a height of 230mm or 280mm, this hinge bracket is ideal for various types of sofas, offering a seamless fit and enhanced support 【Application】:This Movement Hinge is suitable for all kinds of folding sofas/Bean bag/sofa bed Specification: Material: Metal Size Chart: A: 8cmx14cmx23cm/3.15inchx5.51inchx9.06inch B: 8cmx14cmx28cm/3.15inchx5.51inchx11.02inch Package Includes: 1X Sofa Backrest Hinge Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.