The Silva Expedition 4 Field Compass is a baseplate compass with almost everything. A magnifier with millimetre and inch scales plus Romer scales of: 1:63.360 1:50.000 1:25.000.

The large curved baseplate has silicon feet to stop it slipping, stencil hole for exact position marking, magnifying lens and lanyard. It's a compass with all the extra functionality for GPS users.

Silva Compasses are famous throughout the world and benefit from 60 years of invention, testing and refinement of navigation equipment of the highest quality. All Silva compasses carry a five year warranty.

• Light and handy, easy to grip compass housing
• 1:25k, 1:50k, 1:63.36k, mm and inch map measuring scales
• Accuracy max 1.0° from true course
• Large base plate with rounded edges and corners
• Patented red/black north/south lines in the capsule for quick and correct course setting
• Three silicone feet prevent the compass from sliding off the map
• Stencil holes in the base plate for exact position markings on the map
• Magnifying lens
• North indicator on the red end of the compass needle
• Luminous markings for navigation in the dark