The present invention relates to a housing (10) with one first housing part (12) and one second housing part (14), which are reliably locked by an internal locking arrangement. The locking arrangement is suitable for various types and sizes of housings, particularly for the housings of electronic and display devices. The locking mechanism comprises a first locking element (30) being arranged moveably along an axis on the first housing part (12) and comprises a first engaging portion (32) that forms an engaged or disengaged state with a second engaging portion (42), which is arranged on the first housing part (12). A third engaging portion (52) arranged on the second housing part (14) is locked-in in the engaged state leading to a reliable locking of the first housing part (12) and second housing part (14), whereby the change between the engaged and disengaged state is realized by a movement of the first locking element (30).