APPLE INSIDER
The Sketchboard Pro combines the convenience of a drawing table with the security of an iPad case to give artists a comfortable place to draw.
While we love drawing on the iPad, its small size can make long drawing sessions difficult. On newer iPad models, the edge-to-edge display can make finding a comfortable position for your hands difficult.The Sketchboard Pro is, essentially, a large case for your iPad. All you’ll need to do is press your iPad into the rubber recess, and it will securely fit in, with the screen sitting flush with the rest of the SketchBoard Pro.
Source: APPLE INSIDER