General description: Self-locking folding hinges with 0-90-180 degree positions are ideal for extension panels for drop-leaf tables. Made of galvanized iron, they offer a robust and practical solution for maximizing space in various environments such as kitchens, laundry rooms, shops, boats, warehouses, garages, and offices. Technical specifications: Material: Galvanized iron; Item size: 106 x 54 x 32 mm (4.17 \" x 2.13 \" x 1.26 \"); Material thickness: Approx. 2.5 mm (0.098 \"); Maximum load capacity: Approx. 225 kg (500 lb) for 2 fittings. Installation: To install the fittings, simply attach them with screws. Once installed, the extension panel can be easily folded or unfolded by pressing the middle latch. Usage: These fittings are designed for use in spaces where flexibility is crucial. They allow for easy folding and unfolding of the extension panels, providing a practical solution for storage and space utilization. Other information: Package includes: 4 folding fittings and 32 mounting screws.