Simply open the wing and slide the teeth to grip your sized lid

and type-C cable

can be connected to computer

Stainless Steel

If you want a little more difficulty

Removable Piano Keyboard Note Labels Color:Black Simply open the wing andEXCELLENT TOOL FOR LEARNING THE PIANO! It is very challenging for piano beginners to memorize all the keys of the piano in a short time, which prevents us from playing the piano immediately. What's even more frustrating is that the enthusiasm for learning piano that we just ignited is likely to be dying. As you know, learning to play the piano is a process, but we can still use tools to make the process faster and easier. The detachable piano keyboard