A device for stretching skin, has a plate-shaped main body, comprising a tensioning element thereon. The tensioning element is rotatable about an axis of rotation, as a result of which a pulling thread affixed to the tensioning element can be wound up. A latching lock serves for fixing the rotatable tensioning element and comprises a securing for securing the latching lock against inadvertent release. The tensioning element can be moved in a direction of said axis of rotation against a force of a spring. The latching lock can be removed from a latching position, and return to the latching position as a result of a force from the spring, The securing can be actioned by a securing lever arranged on the rotatable tensioning element, A movement of the securing lever can action the tensioning element at the same time.