Disable Eight Keyboard Features: No Numbers, No Upper Case, No Lower Case, No Alphabet, No Backspace, No Spacebar, No Delete, and No Enter Key. The more keyboard options you disable, the more control is brought to your HTML form content. Press a button and the code is generated for you. For example, when someone tries to type numbers into your form when it calls for letters only, nothing will be entered. Works in Internet Explorer, FireFox browsers and more. And as always, Oven Fresh products include Free Upgrades and Support for Life.