this keyboard is corresponds to its description it is flexible, period. I do not think that the creators of this one will be bothered about anything else. so can bend at will and "wash" but write with is very painful. impossible to use it on a soft surface if not the keypad is not flat and the keys throng of them same. and when one is on a rigid surface press one of the buttons on the nearby support because the keys are not independent. So funny but difficult to use as a keyboard