Features: Premium plastic and metal made, anti-vibration and anti-shake, durable for long for time use. Exquisite workmanship, CNC precision technology and processing. Using a 25mm ball for head diameter to increase the friction of the contact area and make it more non-slip. Quick assembly, flexible and stable, for most tripod, monitor, LED light and microphones. Standard 1/4 screw interface, suitable for most screw holes in the market, motorcycle rearview mirror fixing bracket accessories. Specifications: Material: Plastic Colour: Black Size: Approx. 13x4.5x2cm/5.11x1.77x0.78 inch Applications: for Camera Monitor Mount LED Light Microphone Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Ball for Head Mount 1 Piece Mount Adapter 1 Piece Long Screw