1" Aluminum Alloy ball mount base accessories for bicycle motorcycle ATV phone mount This ball mount base is compatible for the handlebars/rear-view mirror bars of motorcycles and bicycles within the instructed dimensions. Fit for 1'' Ball Socket Systems. Compatible with RAM Mounts/double socket arms as well as digital electronic device mount and other bike cell phone holder which has 1'' ball socket. 1. Fit for bike handlebar diameters from 0.5'' to 1.26''. 2. Three rubber ring inserts diameter are: 0.5'', 0.87'', 1''. 3. Bike handlebar mount base diameter is 1.26''( when without sizing inserts ). 4. Ball head diameter: 1''. 5. Ball mount material:high quality aluminum alloy with TPU. 6. Ball main material: aluminum alloy. 7. Ball head adopts CNC molding, with anti-slip properties. Package list as below: 1 pc 1" ball mount 3 pcs rubber washers inserts.

?PACKAGE CONTAINED?The package comes with three rubber ring inserts to provide a snug fit and protection of the mounting surface. Rubber rings diameter are: 0.5'' / 0.87'' / 1''. ?UNIVERSAL COMPATIBILITY? This 1 inch ball mount handlebar base accessories compatible with RAM Mounts and socket component, including double socket arms, navigation mounts, action camera mounts, bike & motorcycle phone mount holders and others electronic device holders. Suitable for bike, bicycle, motorcycle, stroller, mountain bike, dirt bike, road bike, golf cart, electric scooter, ATV, etc. ?HIGH QUALITY RAW MATERIAL?This phone mount ball made of high quality aluminum alloy.It is durable and reliable in the most demanding environments. The ball joint adopts CNC-molding design, with anti-slip performance. ?LARGE CAPACITY FOR HANDLEBAR?This 1 inch ball mount tool free fits for handlebars from 0.5" to 1.26" in diameter. ?STURDY AND SHOCKPROOF?Sptchapn 1" ball mount base utilizes rubber-insert and lockbolts to prevent loosening in high vibration for mounting to motorcycle or bike handlebars as well as other round rails within the insturcted dimensions.