Liquid Field Compass Professional Map Compass Navigation Compass Deluxe map compass,Lightweight, versatile compass made of durable, clear, scratch-resistant acrylic Fixed declination correction scale, jewel bearing, and marking holes for control points A variety of products to cover all your outdoor and survival needs,Adjustable marching line Liquid filled compass,Swivel bezel,Extended clear base plate for improved map reading Multiple measurement scales for precise route planning