An iterative upgrade over the classic W358 clay.

Combined with clay color feedback, four different colors and compositions of clay were developed.

PD-6

Standard clay. The color is brighter. The weight is 1kg. The composition contains trace sulfur.

PD-7

Standard clay. Classic clay color, weight is 1kg. Composition contains trace sulfur.

PD-8

The color of the clay is earth gray. It is a sulfur free clay product. Weight 0.65kg. Light clay

PD-9

Sulfur-containing clay products, clay color is brighter. Weight is 0.65kg, light clay