Angelina (r) heat fusible fibers are polyester fibers that bond to themselves using heat to form a luminescent material. Heat fusing occurs when the fibers soften and fuse together. This fusing is done with a simple household iron and a sheet of parchment paper or tissue paper. When bonded together, Angelina fibers create a shimmering web of color, which can range from delicately lacy to quite thick -- allowing you to create a variety of custom, non-woven fabrics. You can then further embellish these fabrics with embroidery, trims, etc. Or you can spin the fibers with other fibers to create custom sparkling yarns. There's no limit to the uses for these fibers -- just apply your imagination and create!