The ones I bought fit PERFECTLY and tight ! even after the fall the two pieces were intact. No problem with keyboard/slide. I have order 3 more....for that money its just a no brainer. Finally, I think they look really cool. The n900 still looks new and it compliments the design. I ripped of Clear Protector (after 3 days) and will use these from now on. I wonder if the phone would have fared as well with just clear protector.... probably not after a fall onto concrete.