A complete kit for anyone teaching navigation and map reading. It pairs a class set of TruArc 3 compasses with an oversized transparent instructor compass, a laminated field guide and links to Brunton's online curriculum, all in a padded case with slots that protect each compass individually. Key Features TruArc 3 compasses supplied in sets of 12 or 24 6 x 9 inch transparent instructor compass with a moveable needle and declination adjustment Newly improved, two sided laminated Field Guide to Compass Use Link to the online ABC's of Compass Use curriculum, covering all ages and multiple focus areas Padded soft carrying case with a handle and a custom foam insert that individually protects each compass TruArc Global Needle tilts up to 20 degrees for balanced use worldwide Tool free declination adjustment to orient magnetic north to true north Inch and millimetre scales on the compass baseplate for map work 2 degree resolution azimuth ring Safety release neck lanyards marked in inches and centimetres for extra map measurement Made in the USA in Riverton, Wyoming Brunton offers the compass set in either 12 or 24 units, so check which configuration you are ordering. Specifications Dimensions 10.5 x 10.5 x 3.5 in Weight for 12-Piece Kit 1043 g | 36.8 oz Video