Very messy and short-lived
Being a hand quilter, I had hoped this method would work better; template stencils are virtually unavailable anymore, unfortunately. Filling the box with the plain zip-type bag of blue chalk was very messy, much chalk being wasted. The chalk does not stay on the fabric long, so only one hoop's worth can be drawn at a time. I do not recommend this product as a replacement for the long-used plastic templates.