Abstract: A delivery system for delivering a powder, such as chalk. The chalk is retained within a permeable, porous container. The powder is dispersed to an object outside the container upon application of a force. The container includes a plurality of sidewalls. The powder is deliverable when an object applies the force to an outside surface of the sidewalls. The force comprises engaging an outer surface of the sidewalls with an impact, such as a slap. The force generates sufficient kinetic energy to at least partially enable the powder to pass from an inner surface to the outer surface through a permeable portion. The system is useful for quick access to the chalk with one hand. The system can also form a pocket on a garment, whereby applying the force is applied on the pocket for dispersal.