The 4 Pack Olfa Products Sewing Quilting Pattern Making Fabric O-Weights 8991 is a set of sewing weights specifically designed for quilters and seamstresses. Made by the brand Olfa in the United States, these fabric weights are essential for keeping fabric in place while working on patterns and designs. Perfect for precise and accurate cutting and pinning, this set includes four O-Weights to help streamline your sewing and quilting projects.