Abstract: A burglary-preventative profile set for a panel (3) which is movably mounted with respect to a frame (4), comprising two profiled strips (1,2) which mutually cooperate so as to cover a chink (5) between the panel (3) and the frame (4), at least in the closed position of the panel (3). The chink is thus rendered inaccessible to a jemmy, crowbar or other such instrument. Both strips (1,2) comprise a U-profile with a short leg (8) and a long leg (9), whereby the long leg (9) comprises an inward buckle (93) which acts as a transition between two mutually parallel parts (91,92), which parts (91,92) lie in displacement with respect to one another across at least the thickness (d) of the strip (1,2).