Della Q's Mesh and Zip Bags are fashioned of fabric on one side and mesh on the other. Each set includes three nesting zipper pouches that may be used for small projects and notions and stored inside one another to save space. The Small is 7.5" x 5" x 2.25"; the Large is 9.5" x 6" x 2.75"; the X-Large is 11" x 8" x 3.5".