Hi Lorna. The Simulknit needs both the main bed, and the ribber to work. I haven’t used mine yet, but they apparently make a double-sided fabric with patterning on one side. I am having technical issues with loading images up to this blog, and I don’t know when I will be able to resolve that. It’s been very frustrating. I do have the manual scanned, so I will try to upload it for you but it might not be for a few weeks.