Is this keypad/trackball as tough as the original from Sprint? or is it just a fake...?

[Tony]

http://www.sw-box.com/blackberry-tour-9630-keypad-keyboard-blue.html

http://www.sw-box.com/blackberry-javelin-curve-8900-tour-9630-trackball-joystick-dark-blue.html

PLEASE LET ME KNOW, I AM CONSIDERING TO BUY THESE ITEMS BUT I DONT WANT THEM TO BE BAD