Rainbow Gallery Precious Metals is a mini-garland metallic chenille. It is surprisingly strong. Very little of the metallic will flake as you are stitching. Precious Metals may be passed through canvas and works on almost any size canvas including 18 count. On fine canvas it is hard to find the right hole as it is so fuzzy it hides the adjacent holes. It might help to outline the area that you are going to stitch and then fill in. If you miss a stitch here and there, it will not show.