Playing in the fresh air and creating your own colourful world is one of the most beautiful activities for children. Whether blue houses with red trees in front of it, a private "pool" or the "private road" for tricycle and scooter – there are no limits to creativity. With the road crayons, even the smallest children can conjure up imaginative works of art on the asphalt. But only until the next rain shower: it washes the colours away.