Brand new and high quality Features: Dual screen full-tangent distortion-free piano online teaching training special lens, art online teaching fisheye lens, drawing online teaching super wide-angle lens. Adopts industrial aluminum and advanced optical lens design allows you to take pictures with outstanding clarity and detail without vignetting, blur, and disconnection. More high-definition, larger angle, you don't need to stand and watch the entire keyboard. The soft rubber clip will not scratch or damage your mobile device, and the longer clip makes it more stable on your phone. Comes with a black bag for easy storage, disassembly, or installation, allowing you to take it with you when hiking or traveling. Specifications: Product Name: Dual-screen, full-tone, distortion-free Piano Online Teaching Special Lens, Art Online Teaching Fisheye Lens, Painting Online Teaching Super Wide-angle Lens Advantages: More high-definition, larger angle, no need to see the entire keyboard Material: Optical lens+aluminum alloy+plastic shell Size: Approx. 10.7x3 cm/4.21x.18 inches Color: Black Note: Please allow 1-2 cm error due to manual measurement, please make sure you do not mind before ordering. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Piano Fish Eye Lens