I love this folding metal box spring it was easy to installed  and the cover was easy to put I place it on top of my metal frame and them I placed my thick queen size bed and now my bed is not as tall . I am happy I made this purchase because I know it will last a life time all I need to worry about is only to replaced my mattress in the future .I will definitely order another one for the full size bed I have in one of my bedroom. I definitely think it was worthy . I am throwing away my box spring made of wood material.