Want to embroider on a t-shirt or onesie? Not without this stuff, you don't! Iron it onto your fabric to avoid it from stretching while you stitch. Then, simply tear it away when finished embroidering. Don't worry, it comes with full instructions telling you exactly what to do with it. Still not sure? Here's a tutorial for how to use it!TIP: Can also be used topside on dark or difficult fabrics -apply patterns onto the stabilizer instead of the fabric.