This is a unique parsi chowk box which is made from metal. There are very small holes punched in the metal box, from which the chowk powder falls thru and creates the design you see.
Fill the above box with white powder. I use white lime powder, combined with various colors bought from India.
Gently press the filled box onto your surface. Usually the side of the doors, steps, entrances etc. The finished design looks like this: