The Yesido Smart Tablet Holder - C21 is a black tablet holder designed for tablets ranging from 6.5 to 12.9 inches. It features 360-degree rotation for flexible viewing angles, anti-shake and anti-shock capabilities, and anti-scratch protection. The holder is made of hard plastic and has a clip base for stability. 
Here's a more detailed breakdown:
Brand: Yesido 
Model: C21 
Color: Black 
Compatibility: Tablets with screen sizes between 6.5 and 12.9 inches. 
Key Features:
360-degree rotation: Allows for versatile viewing angles, according to CyberDeals and WIBI. 
Anti-shake and anti-shock: Provides stability and minimizes vibrations, according to WIBI. 
Anti-scratch protection: Helps protect the tablet from damage, according to WIBI. 
Clip base: Ensures a stable and secure grip. 
Material: Hard plastic. 
Additional Information:
The clip can be adjusted to fit surfaces up to 85mm (8.5cm) thick. 
The clamp can be adjusted to a maximum width of 190mm (19cm).