Abstract: An apparatus, a system, and a method are for facilitating movement of an object. The apparatus has a bearing body provided with an engagement means; a wheel operatively connected to the bearing body via an arm that has a first end portion and a second end portion, wherein the first end portion of the arm is rotatably connected to the bearing body; and a driving device that is directly or indirectly operatively connected to the bearing body and a portion of the arm that is at a distance from the first end portion of the arm, wherein the driving device is configured to rotate the arm and the wheel relative to the bearing body between a passive first position and an active second position. The engagement means of the bearing body is in the form of at least one protrusion arranged to be inserted into a forklift pocket arranged at a bottom portion of the object.

Abstract: A roof element and a shelter having at least one roof element. The roof element is made from a roof element resembling a roof of an ISO freight container. The roof element includes a first face for, in a position of use, forming a downwardly facing surface of the roof element; a second face opposite the first face; and four hexagonal corner portions, wherein each of the four hexagonal corner portions has a first aperture configured for receiving a twistlock element. The first aperture is arranged in a support face of the hexagonal corner portion, the support face being closer to the first face than the second face of the roof element.

Abstract: An apparatus, a system, and a method are for facilitating movement of an object. The apparatus has a bearing body provided with an engagement means; a wheel operatively connected to the bearing body via an arm that has a first end portion and a second end portion, wherein the first end portion of the arm is rotatably connected to the bearing body; and a driving device that is directly or indirectly operatively connected to the bearing body and a portion of the arm that is at a distance from the first end portion of the arm, wherein the driving device is configured to rotate the arm and the wheel relative to the bearing body between a passive first position and an active second position. The engagement means of the bearing body is in the form of at least one protrusion arranged to be inserted into a forklift pocket arranged at a bottom portion of the object.