Features: brand new and high quality his 25mm to 20 camera screw adapter is made out of heavy duty Aluminum alloy material and is for all industry standard 1 inch / 25 mm mounting arms. Ball joints are coated in a rubber duty Aluminum alloy material and is for all industry standard 1 inch / 25 mm mounting arms. Made of high-quality materials, durable, firm and shock-proof to use. 360 degree universal rotation ball for head, easy to adjust the angle. It is suitable for motorcycles, scooters, motorcar, tricycle, pull car and other vehicles. It is suitable for phone holder, camera holder, recorder holder and other DIY use. Easy to operate and simple to install and assemble. Ball for Head only, other accessories demo in the picture is not included! Specifications: tem Type: Ball for Head Material: Rubber+Aluminum Alloy+Stainless Steel Size: (as picture shown) Color: Black Suitable Vehicle: for Motorcycles/scooters, etc. Suitable Devices: for phone holder/camera holder, etc. Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm 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: Package Includes: 1 x Ball for Head