Linoleum knives of various shapes and lengths are inserted into a wooden handle. They are typically used to cut out a design from a linoleum or rubber printing block. The knives are easy to insert and remove from the wooden handle. Insert the end of the knife into the wooden handle, then the wooden stick, and then press lightly to secure the knife. Remove the knife by pressing the wooden stick again and then pulling it out. If you want a wooden handle for more than one knife, you can purchase them separately. Always be careful to cut away from yourself, as the knives can be very sharp.