Crafted from durable aluminum alloy and stainless steel, the tablet mount arm features a resilient super crab clamp and an adjustable aluminum alloy ball head. The clamp's built-in rubber pad prevents scratches, while the high-quality ABS material ensures a secure grip. With versatile adjustability, the ball head provides 180° tilt freedom and 360° rotation for precise positioning. Compatible with rods up to 2.5 inches in diameter, it suits various applications like strollers and treadmills. Stretchable to fit devices from 7 to 12.9 inches, including iPads and Fire HD, the user-friendly design requires no tools. Satisfaction guaranteed with a full refund or replacement option available.