Bias Makers kit Material: durable hard plastic and metal.this tape making set will last a long time with your tool.4 sizes: 6mm, 12mm, 18mm, 25mm.good quality, strong and durable, which is best to sew it. Widely Application:The Bias Binding Device can be widely used in various leather crafts, tailor-made patchwork, home decoration, DIY crafts and much more. A useful tool for your daily life. Bias Devices Easy to use:1. Cut the bias strips on the fabric at 45. 2.A straight strip facing upwards into the wide end of the tape, use an awl to feed the fabric through. 3. Pull the tape and press the folds into the iron, ready to be sewn or glued. Advantage: The sewing bias makes your sewing easier, for the fabric is stretchy and easier to work with when sewing curves and angles. Sewing Bias Simple Operation: This is a sophisticated tool that works well for creating DIY crafts. Automatically folds fabric into two halves, forming a strip in minutes, quick and easy.