General description These 12 pieces of aluminum alloy pivot joints are designed for use with the 2020 series aluminum extrusion profiles. They provide flexibility and adjustability for various applications. Technical specifications Color: Silver Material: Aluminum alloy Base Diameter: 20x20mm Height: 28mm Hole Diameter (on the base): Φ6 Measurement allowed error: +/- 1-3cm Package contents 12 x Adjustable Hinge Bracket