"Sewline Fabric Glue Pen means the end of sewing around pins! The water-soluble blue glue is easy to apply and dries clear -- a quick, convenient way to hold fabrics for sewing. Great for quilting and applique work but also for hemming and general sewing. Once glued, the fabric pieces can be pulled apart in case of misplacement or if they need to be adjusted. Wonderful time saver for English Paper Piecing. Easy to refill with Glue Pen Refills, sold separately."