2 Sets Heavy Duty 360 Rotating Hidden Bookcase Hinge Secret Door Pivot Hinge Kit 304 Stainless Steel Application Suitable for wooden doors, aluminum framed doors, cabinet doors, hidden doors, and other applications with a door weight of up to 330 lbs (150 kg). Specifications Material: 304 Stainless Steel Color: Silver Surface Treatment: Brushed Style: Heavy Duty Mounting Type: Door Mount Number of Pieces: 2 Sets Maximum Door Weight: 330 lbs (150 kg) Screw Specification: M5 Package Dimensions: 20 x 15 x 10 cm (7.87 x 5.91 x 3.94 in) Upper Hinge Size: 130 mm x 25 mm (5.12 x 1 in) Lower Hinge Size: 105 mm x 25 mm (4.12 x 1 in) Hole Diameter: 6 mm (0.23 in) Gross Weight: 1.5 kg (3.31 lbs) Net Weight: 1.2 kg (2.65 lbs) Package Included 2 Sets Door Pivot Hinges Note Slight color variations may occur due to lighting conditions during photography. A 1–3 cm measurement deviation may exist due to manual measurement. Please ensure you are comfortable with these tolerances before placing your order.