4" Area of Effect Markers Type Corrosive Cloud - $6.00 Forest - $6.00 Incendiary Cloud - $6.00 Rough Terrain - $6.00 Smoke - $6.00 $6.00 Qty: Add to Cart These stylish, neoprene AoE markers add cool effects to your game. There are two 4-inch markers per package, available in Rough Terrain, Forest, Smoke Cloud, Corrosive Cloud, and Incendiary Cloud.