• Ideal flange coupling connector for shaft connection in RC models. • Made of stainless steel with a silver-tone finish. • Dimensions: Inner diameter of 8mm (0.31 inches), total height of 13mm (0.51 inches), outer cylinder diameter of 16mm (0.63 inches), base plate diameter of 32mm (1.26 inches), and base plate height of 3mm (0.12 inches). • Hardened by heat treatment and galvanized for greater stability and insulation. • Facilitates the attachment of a shaft to a plane and the mounting of other accessories. • Includes 1 rigid flange coupling, 1 mini hex key, and 2 set screws. • Please note that measurements may have an error of +/- 0.1 inches.