Child-proof container comprising: - a housing made of sheet material defining an inner volume configured for housing a product, the housing exhibiting a predetermined number of lateral walls defining at least one passage opening delimited by a free edge, said passage opening being configured to put in communication the inner volume of the housing with the outer environment, - one closing system, also made of sheet material, engaged at the free edge and movable, particularly by rotation, with respect to the housing, the closing system being configured for defining at least one closed condition in which the system itself prevents the communication between the inner volume of the housing and the outer environment, the closing system being further configured for defining an opened condition in which the system itself enables the communication between the inner volume and the outer environment, the closing system comprising at least one tab having a closing portion engaged with the free edge of the housing and movable, particularly by rotation, with respect to this latter, the tab further exhibiting at least one inserting portion configured for being inserted, in the closed condition of the closing system, inside the inner volume of the housing, - at least one safety device made of sheet material comprising: o at least one first hooking portion carried by the tab of the closing system, o at least one second hooking portion engaged with the housing and configured for cooperating with said first hooking portion, the first and second hooking portions (12, 13) being configured for stably engaging with each other in the closed condition of the closing system in order to define a safety condition, said first and second hooking portions (12, 13), in the safety condition, are configured for preventing the closing system from switching from the closed condition to the opened one, wherein the safety device is further configured for enabling the first and second hooking portions (12, 13) to reversibly switch, following the opened condition of the closing system, to the safety condition, characterized by the fact that the container comprises at least one slit configured for enabling, at least in the safety condition, to insert at least one opening device adapted to enable to disengage the first and second hooking portions (12, 13) from each other and therefore to enable to switch the closing system from the closed condition to the opened one. - a housing made of sheet material defining an inner volume configured for housing a product, the housing exhibiting a predetermined number of lateral walls defining at least one passage opening delimited by a free edge, said passage opening being configured to put in communication the inner volume of the housing with the outer environment, - one closing system, also made of sheet material, engaged at the free edge and movable, particularly by rotation, with respect to the housing, the closing system being configured for defining at least one closed condition in which the system itself prevents the communication between the inner volume of the housing and the outer environment, the closing system being further configured for defining an opened condition in which the system itself enables the communication between the inner volume and the outer environment, the closing system comprising at least one tab having a closing portion engaged with the free edge of the housing and movable, particularly by rotation, with respect to this latter, the tab further exhibiting at least one inserting portion configured for being inserted, in the closed condition of the closing system, inside the inner volume of the housing, - at least one safety device made of sheet material comprising: o at least one first hooking portion carried by the tab of the closing system, o at least one second hooking portion engaged with the housing and configured for cooperating with said first hooking portion, the first and second hooking portions (12, 13) being configured for stably engaging with each other in the closed condition of the closing system in order to define a safety condition, said first and second hooking portions (12, 13), in the safety condition, are configured for preventing the closing system from switching from the closed condition to the opened one, wherein the safety device is further configured for enabling the first and second hooking portions (12, 13) to reversibly switch, following the opened condition of the closing system, to the safety condition, characterized by the fact that the container comprises at least one slit configured for enabling, at least in the safety condition, to insert at least one opening device adapted to enable to disengage the first and second hooking portions (12, 13) from each other and therefore to enable to switch the closing system from the closed condition to the opened one. o at least one first hooking portion carried by the tab of the closing system, o at least one second hooking portion engaged with the housing and configured for cooperating with said first hooking portion,