Please do NOT waste your money on this horrible product. I have solar glides installed theoughout and the result is extremely dissapointing. Firstly, it stains to anything. I have one right behind my kitchen sink and if water splashes on it, it stains and will never dissappear. Secondly, the side screws all falls apart after 1 month of use. My master bedroom has huge window therefore we have large solar glides. The bottom wood that is screwed to the solar glides fell off on my face. Please spend more money and buy product from bigger company. Its not worth trying to save a bit. Its the biggest lesson i learned from this experience. Also the customer person who answers the call is unprofessional and the manager also is unhelpful refuse to deal with customers just like other customer mentioned. Please dont waste your money.