I marked a queen quilt with white iron-off pounce chalk. I used stencils that I designed on vellum, then hand punched holes into with a size 14 sewing machine needle. I changed my mind THREE times on how I wanted to mark my top, and ironed it off twice. The 3rd time as the charm and it is now on my frame being hand quilted. It stays on well and irons off like a charm. You do need to practice a wee bit before you use it so you get the rubbing (not pouncing) correct and you need to carefully lift your stencil to see if a sufficient amount of chalk came through...or at least I did. I am quite happy with the white, but had to use a wash-off marking pencil on the lighter parts of my quilt. Hope this helps!