The ergonomic design of this 3 needle felting tool makes it perfect for delicate or detailed designs as well as 3D pieces. Using a safe secure surface (ideally a felting mat) lay your roving wool over the top of your material and punch the needle through both layers, interlacing the fibers and building up your design. For use with felt, wool, denim, fleece and more! Needle tool comes with 3 needles included. Spare needles can be purchased separately.