I was apprehensive about ordering motorized Blinds from China. We have so many local company's that come out measure and install motorized blinds. After receiving a "local" bid I looked through Vendors on Alibaba and found a Quality company with outstanding reviews. I contacted Ivy with Weifang Mingchen Sunshade Technology . I could not be more pleased with the quality of the Material, The professional finish of the Header and the very easy self installation. From The day I started my order till I received my Electric Roller Shades was only 15 days. They came with everything i needed and very simple instructions. Once I read over the instructions, installation took less than 15 minutes, I'm sure I will be able to install my next order in less then 10 minutes per shade. The remote was Very easy to program , The shades stop before hitting the window seal and stop at the very top of the frame. Order exact width -1cm. you will be happy you did!