These sculpting tools are easy to use. For tool #2 and #4, just drag the end of the tool back and forth on the area where you want to add wrinkles. If you want a softer look, put a piece of plastic wrap on the area first. With tool #5 Combo, use straight, angular, and cross - cross motions to create cross - hatch wrinkles quickly. Dip the bristle end in powder and brush it on the sculpture to blend the texture. When using the tools, make sure to apply an appropriate amount of pressure. After use, clean the tools with a soft cloth to keep them in good condition. Keep the allen key in a safe place in case you need to remove the tip of tool #5 Combo.