Gale Force Nine's Arc of Visibility is the ultimate tool to determine your unit's facing. Quickly determine if your archers can draw a bead on a flanking unit or if your knights are in position to charge into the enemy infantry. Simply align the bottom of the Arc with the front facing of the unit and slide it to the corner in the direction your need sight on. Simple! Take control of the battlefield with Gale Force Nine's Gaming Aids. Our accessories and markers are laser cut from colorful, durable plastic. Each piece is pre-assembled and ready to deploy to the tabletop right out of the package. Game ON!