This is Tamiya Weathering Master C Set.
Color: Orange Rust, Gun Metal, Silver
Set of 3 metallic colors: orange rust (for orange/red tinted rusty metal), gun metal (for unpolished metal look) and silver (for polished metal look).
Pocket sized case includes 3 colors and special double-tipped applicator tool.
Tamiya Weathering Master C (1 set)