【Sturdy & Anti-scratch】:Tablet mount arm are made up of super crab clamp and articulating magic arm,both of them are aluminum alloy and stainless steel material,sturdy,durable,super crab clamp build-in rubber pad to anti-scratch,clamped the pole tightly,tablet clamp is high quality of ABS material,clamp feet build- in rubber pad to hold iPad without slipping. | 【Adjustable Angle】:Allowing to each end ball head 180°tilt freedom by twisting joint knob of articulating magic arm,also it can lock ball heads in place to keep tighten,on top of arm 0.67 inch /17mm stainless steel ball head which support tablet clamp 360°rotation flexible,the high quality of construction design,reliability tablet bracket will help to you work more convenient. | 【Adjustable Jaw】: Super crab clamp adjustable jaw diameter is 1.77 inch/45mm,the tablet mount arm can be clamped rod of diameter 1.57 inch / 40mm (like pipes, tripods,desks, handlebars) etc,suitable for stroller,treadmill,elliptical,spin bike,shopping cart,wheel chair,music stand,indoor stationary bicycle,golf cart. | 【Universal】: Tablet clamp can be stretched,compatible with 7~12.9 inches devices:e-Reader,Fire HD,iPad Air 2/3/4/5/6,iPad mini 2/3/4/5/6/,iPad Pro 9.3/10.5/11,iPad2019/2020/2021/2022,Google Nexus 7/8/9/10/11,LG G Pads/7.0/8.0/ 8.3.