Lightweight, versatile compass made of durable, clear, scratch-resistant acrylic * Employs Suunto"s two-zone system for reliable readings in northern hemisphere * Fixed declination correction scale, jewel bearing, and marking holes for control points * Luminous bezel and markings for navigating in poor visibility; lanyard with detachable snap-lock * Measures 2.2 x 4.3 inches (W x L) and weighs 1.1 ounces; lifetime warranty