Features： 1、Fitment: Double ball base is replacement for Gold Wing CB 190R, fit for mounting size 20‑48mm/0.79‑1.89in of motorcycles, mountain bikes, etc. 2、Premium Material: Double ball bracket is made of aluminum alloy and rubber material, high strength, rustproof, sturdy and durable. 3、Excellent Performance: Professional manufacturing, exquisite workmanship, CNC integrated molding, smooth surface, anti slip, stable and reliable. 4、Function: Motorcycle double ball bracket is used to fix the cell phone, sat nav device, and the action camera to record travel during driving. 5、Adjustable: 1in double ball head design support to adjust all degree as per you need, more flexible, convenient for using, save your time and energy. Specification： Item Type: Double Ball Mount Base Material: Aluminum alloy and rubber Description: 1inch multifunction double ball head bracket, ball and socket technology provides almost unlimited adjustability for mounting on bikes, motorcycles, mountain bikes, electric scooters and more Fitment: Fit for installation distance between 20-48mm/0.79‑1.89in of motorcycles, mountain bikes, etc Fit for CB 190R  Fit for Gold Wing Package List： 1 x Ball Head 1 x Ball Head Mount Base 5 x Screw 2 x Mounting Accessories 3 x Washer 1 x User Manual