The Hannover Medical School (Germany) developed the"Flap Lab I" flap simulator, a practical improvement to surgeon training. It provides realistic conditions for understanding and following the principles for planning and performing local flaps for coverage of skin defects. The Flap Lab I has proved to be a very good training model in several training courses. This article introduces among others the Z-flap, reverse Z-flap (so-called hanging man), and Limberg flap.