An arrangement for at least partially covering a window

An arrangement for at least partially covering a window, wherein the arrangement comprises a covering adapted for being arranged in different intermediate extension states between a retracted state and an extended state for covering the window to different extents, wherein the covering comprises a plurality of first sheet element sections which are connected to each other via their edges so that the first sheet element sections form a zigzag shape between opposite ends of the covering in its extension direction, wherein the covering comprises a plurality of second sheet element sections which are connected to the first sheet element sections so that they project substantially perpendicularly relative to the extension direction of the covering, wherein at least one of the second sheet element sections is connected to every second transition between two adjacent first sheet element sections in the zigzag shape and wherein an edge of the at least one second sheet element section is free, wherein the arrangement comprises an elongated support element, wherein the covering is supported by the elongated support element and movably arranged in a longitudinal direction of the elongated support element between the different extension states in the extension direction characterized in that the arrangement comprises at least one covering end piece attached to one of the opposite ends of the covering, wherein the covering end piece comprises a through hole for receipt of the elongated support element in a sliding manner and that the covering end piece is adapted to position the covering in the different extension states along the elongated support element via friction.