Feature: 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 moreFitment: Fit for installation distance between 20-48mm/0.79‑1.89in of motorcycles, mountain bikes, etcFit for CB 190R Fit for Gold Wing . Package List: 1 x Ball Head1 x Ball Head Mount Base5 x Screw2 x Mounting Accessories3 x Washer1 x User Manual Note: Please check whether the mounting size of your model is between 20‑48mm/0.79‑1.89in before purchase.