We just loved the single slide glass shower doors. They are very high quality. We watched the video and read the instructions, video was easier to understand but left some parts out such as the rubber tracks for both ends of the sliding door. Also how to actually attach the permanent door to the glide. The end cover that screw on the front of the attachments seemed like they should have screwed in farther, to make you feel it was more secure and the door would not fall out. It glides very smoothly and we could not be more happy with our selection.