can be snapped finally fig1 shows an alternative configuration with special complementary holding profiles 60 and 61 on the short edges of panels 62 and 63 hook elements 64 and 67 are again provided which have webs and hook projections as in the configurations above the configuration according to fig1 is designed such that front side 75 of lower side hook element 64 of second panel 63 has a protruding snap element 65 on its free end which engages an undercut recess 66 of upper side hook element 67 of first panel 62 hook elements 64 and 67 can be snapped together by applying slight pressure and undergoing elastic deformation panels 62 and 63 are locked perpendicular to the installation plane by snap element 65 that engages recess 66 the locking of panels 62 and 63 to prevent them from being pulled apart in their longitudinal direction is achieved by holding surfaces 68 and 69 which are provided on hook projections 70 and 71 of hook elements 64 and 67 in the configuration shown protruding snap element 65 of second panel 63 is designed as a ridge that extends over the entire length of the edge undercut recess 66 of first panel 62 is designed as an elongated groove which receives the ridge in the connected position the ridge and the.