Appli-Glue is a basting glue that keep applique pieces in place until they're ready to be sewn down. The pink tapered tip allows you put a tiny drop in the seam allowance of your prepared applique piece. The tip is made of nylon, so it does not rust, and can twist off to clean if needed. - Archival Quality - product will not damage fabrics or cause premature aging - Acid free – pH neutral - Water soluble (a water based product) - Anti-Clog precision tip - The new taper tip will allow glue to drain back into bottle. - Nylon tip won't rust - Tip cap will prevent dry-out - Completely safe for your quilts — Wash it or not.