Abstract: Storage volume having a cubical housing with an interior space and walls, whereby at least the front wall is provided with an opening, and whereby at least the side walls are provided with a coupling on their outward facing sides, which are made in such a way that they allow such storage volumes to be coupled, either with both their front walls in the same plane, or with the front wall of one of the storage volumes in the same plane as the rear wall of the other storage volume.

Abstract: Balance bike having a frame provided with a steering bush or holder for rotatably holding handlebars with a front wheel fork whereby one or several front wheels are connected to the front wheel fork and whereby the balance bike having two back wheels, characterised in that the frame of the balance bike having two frame parts which are directly or indirectly hinge-mounted at a distance (D) from one another to the steering bush or holder by hinges from where the frame parts extend up to a distance thereof and are each provided with a back wheel.

Abstract: Storage volume having a cubical housing with an interior space and walls, whereby at least the front wall is provided with an opening, and whereby at least the side walls are provided with a coupling on their outward facing sides, which are made in such a way that they allow such storage volumes to be coupled, either with both their front walls in the same plane, or with the front wall of one of the storage volumes in the same plane as the rear wall of the other storage volume.

Abstract: Balance bike having a frame provided with a steering bush or holder for rotatably holding handlebars with a front wheel fork whereby one or several front wheels are connected to the front wheel fork and whereby the balance bike having two back wheels, characterised in that the frame of the balance bike having two frame parts which are directly or indirectly hinge-mounted at a distance (D) from one another to the steering bush or holder by hinges from where the frame parts extend up to a distance thereof and are each provided with a back wheel.