Features: Made of high-quality aluminum alloy body and rubber for head, durable, wear-resistant and has a long service life. 360 degree rotary, anti-shock and stable, easy and simple to install and operate. With a small shape and compact size, it is easy and convenient for us to take and carry. Application Devices: for motorcycle, ship, storage forklift, for smart control system, industrial tablet holder, phone holder, microphone/walkie-talkie holder, GPS navigation stand or other DIY fixing devices. Ball for Head Mount only, other accessories demo in the picture is not included! Specifications: Item Type: Ball for Head Mount Material: Rubber+Aluminum Alloy Size: 62x40x35mm/2.4x1.5x1.3in Color: Black Installation Method: for 49mm screw hole distance Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch 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 includes: 1 x Ball for Head Mount