Specification: Material: 45# steel,hardened by heat treatment, and then electroplated Inner Diameter: 10mm Overall Height: 13mm Bottom Diameter: 32mm Fixed Hole Screw: M4 Fixed Hole Distance: 26mm Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package Contents: 1 x Coupler