The cup holder is made of several materials, TPU material on the lip of the cup holder can anti-slip; Zinc Alloy can make it more textured and the carbon steel bracket can bear weight
Gear design of the cup holder lock your cups and bottles tightly while driving. It can prevent the cups from slipping out.
Adjustable Swivel Ball
The adjustable Swivel ball can help you easy to mount it and adjust the cup holder easily to get a suitable angle.