With six striking mid-toned colours, this collection of rainbow hues was selected to coordinate with a blend of palettes that virtually disappears into your fabric. InvisaFil is an ultra-fine 100wt thread that is a remarkable silk-like cottonized polyester, strong enough to quilt with in the machine for incredible detailed work, or stitch with by hand for super flat, invisible English paper piecing. You can conceal your appliqu stitches like never before, whether youre sewing with it by hand or in your machine. Tiffanys Touch of a Rainbow brings you a perfect assortment of shades that will give your projects a professional touch when used for any type of technique.