Suunto is known for their high quality compasses. The KB-20 is a hand-bearing, floating compass that weighs a mere 2.5 oz. It comes with a yellow plastic housing and nylon lanyard. The accuracy and graduation is 1¡ with a top reading scale and V sight, or an adjustable optical sight with reverse reading. The compass is liquid filled for excellent damping, and steady needle, while the compass card is mounted on a jeweled bearing. It is unlighted. This is truly a precision instrument. Size is 2.2x3x0.6 inches. SW 0.5 lb.