General description The 2pcs 80 Degree Folding Lift Support Black Spring Hinges are designed for versatile applications, including use in folding beds, sofas, and cabinet doors. These hinges feature a robust and invisible design that enhances functionality while maintaining a clean aesthetic. Technical specifications Material: Stainless steel Opening angle: 80° Includes: 1 left spring hinge and 1 right spring hinge Screws: Not included Usage These hinges are ideal for supporting the upper lifting hardware in various furniture applications, providing reliable performance for folding mechanisms.