Made of premium iron material for durable and practical use. It can be used for car door hinges. Easy to install, durable in use. It has a longer service life than your imagination. Great for fixing your car door hinges. Features - Color: Black. - Material: Iron. - Size: 2.00X1.90X1.90cm/0.79X0.75X0.75inch. - nuts are made of durable iron and with black coating, not easy corrosion and anti-rust can be used for a long time. - Make your doors go on / off easily and open / shut very smoothly, best replacement for your old rusted hinge nut. - Simple and practical, to provide you with a simpler and easier installation method. - Remove your old corroded door hinge nuts using driver socket or bit and replace with our new door hinge lock. - These door hinge nuts will match your car with look, feel and quality. Package list: 4 Hinge Nuts