DescriptionUltra-thin design. Easy to install. Fast Heat dissipation. Smooth and straight ABS material. You don't need to worry it will affect wifi signal any more.Features- Color: Black. - Material: ABS - Size: 8.5x5.5x3cm - Ultra-thin design - Easy to install - Fast Heat dissipation - Smooth and straight ABS material - You don't need to worry it will affect wifi signal any more - Reinforced ABS material, lightweight and durable, long-lasting metal - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you!