With Needle Felting, you apply a design to felt using upspun wool (roving), and a special felting needle. You can also apply felt to felt in the same way. Simply use a poking motion with the needle to interlock the fibers. Kits contain: screen-printed felt, unspun wool, cotton thread, foam block, two felting needles, crewel needle and easy instructions. Here is a demo on needle felting, click the arrow.