Natural wool roving ideal for felting. Weight may vary in different storage conditions or humidity. Exposure to moisture or excessiveThe 7 needle felting tool is perfect for use in 2D felting work. The barbed needles catch the wool fibres and push them into your base fabric, keeping your design in place. You can use less needles for more detailed work. The tool has a lockable spring actioned cover for protection from the sharp needles when not in use. For use with felt, wool, denim, fleece and more. Size: 2.5 x 10cm. may cause colours to fade. 10 gram pack. 100% wool.