Single layers of fabric will adhere with no pins. But if there’s any weight or heft, pins go in very easily and support the weight. This design wall isn’t the largest. And I may add a 12” row on the bottom. But this will serve my purposes nicely. When making multiple purses, it’s good to be able to see what I’m working on and what steps have been completed. Above there are two purses including lining and straps.