A set of panels, especially floor panels, comprising panels with a first edge, a second edge opposite the first edge, and a third edge and a fourth edge opposite the third edge, wherein each edge has a supporting profile, suitable to forming with a supporting element of the opposite edge of a similar panel a connection between the panels, the supporting profile of the first edge or the supporting profile of the second edge having a locking element, which in a locking position serves for locking and in an installation position allows joining or separating of the supporting profiles along this direction, and in the laid state a first panel and a second panel form a row within a laying plane, while coupling is provided by which the locking element performs a blockable forced movement, and when forced movement is blocked the locking element is held in the locking position, and when not blocked the locking element can be moved from locking position if the supporting profiles are moved.