The Matthews B6090-20 MatthTIE eliminates the awkward and clumsy tying of knots and bows presently used to draw fabric tightly across the frame. Even with large, heavy solids MatthTIE is fast - it is secure and it ensures a very taut and tight fabric. MatthTIE makes set up and tear down both, faster and easier. When ordering new overheads and butterflies from Matthews you can substitute MatthTIES for the old, standard rope ties.