This is a refill for the Sewline Fabric Water Soluble Glue Pen.
Sewline's Fabric Water Soluble Glue Pen has a convenient, pen-like dispenser with an archival quality solid glue stick inside. A small amount of glue reliably holds fabrics in place for easy sewing. The best part? No pins are required! Although the glue is coloured, it dries clear, is water-soluble and is safe to use on most fabrics. It's also easily refillable. Refills are available in three colours and are sold separately.