RAM Mounts Motorcycle smartphone holder base u-shaped fixing on ball tubes b

The U-shaped base with a B-ball (2.54 cm diameter) is designed to attach to tubes ranging from 1.27 cm to 3.18 cm in diameter. Made of composite and marine grade aluminum, it is the perfect adapter for motorcycle handlebars. Hardware included. (1) 1/4"-20 U-bolt for 1.27 cm - 2.54 cm diameter tubes (1) 1/4"-20 U-bolt for 2.54 cm - 3.18 cm diameter tubes (2) 1/4"-20 Nylock nuts (2) Rubber caps (1) U-bolt spacer Ball size . B size ball: 1" (2.54 cm) diameter (typically used to support a 0-2 kg load) Material. Marine grade aluminum Packaging. Plastic bag Warranty. Lifetime Warranty