Keyguard for Keys U See Large Print Keyboard - Keyboard is not Included.

I helped a friend order this as a replacement for his existing keyboard and shield. They are used by people with poor motor control to allow typing with greater accuracy by preventing multiple keys being pressed. We ordered the shield and the keyboard that was indicated it matched. The keyguard does not fit the keyboard. The keyboard indicated isn't even the same shape as the guard. The guard is as pictured with an arc at the top. The indicated keyboard that is pictured as the one to order with the guard is a straight rectangular keyboard. The cut out holes in the guard are not even a close match for the keys on the keyboard.This is a needed product for some to allow better usage of their keyboard and we looked long and hard to find a replacement but this has been a total fail.