Check the listing for details. 2Pcs 90 Degree Hidden Flap Hinges, 1.93" x 1.18" Concealed Hinge, Silver. Condition: New. Listed at 15.68 USD. Description:Material - The semi-circular hinges are crafted from zinc alloy, offering good resistance to corrosion and daily wear. They are sturdy and durable, featuring an electroplated surface finish for enhanced appearance and protection, and are resistant to rust and breakage. The metal composition ensures stable load-bearing performance, with each pair capable of supporting a table within specified weight limits for extended periods.Feature - This flap hinge features a 90-degree opening and closing mechanism and can open to 180 degrees, suitable for desktop use. Its hidden design keeps it out of sight when closed for a tidy look. The 180-degree opening allows tables to expand fully and panels to fold easily, while smooth operation protects wood surfaces and adds stability to prevent wobbling.