Weathering means adding realistic-looking effects to your models, such as sand on tank treads and mud-caked rally car bodies. These new Tamiya Craft Tools offer by far the easiest way to achieve realistic weathering effects. Weathering Master comes in a pocket sized case with 3 colors and special applicator tool. The pen-type Weathering Stick offers up to 5mm of easy-to-apply color by simply twisting the tip.