brand new and high quality Features: Dual-screen full-key distortion-free piano online teaching training special lens, art online teaching fisheye lens, drawing online teaching super wide-angle lens. Adopts industrial-grade aluminum and advanced optical lens design allows you to take photos with stunning clarity and detail without vignetting, blurring, and disconnection. More high-definition, greater angle, no need to stand and watch the full for key. The soft rubber clip will not scratch or damage your mobile device, and the longer clip length makes it more stable on your phone. Comes with a black bag for easy storage, disassembly or installation, so you can take it with you when you hike or travel. Specifications: Product Name: Dual-screen, Full-key, 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 Full for Key Material: Optical Lens+Aluminum Alloy+Plastic for Shell Size: Approx. 10.7x3 for cm/4.21x.18 inch Color: Black Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. 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