Fits for most indoor like home maintenance and outdoor activities like camping, map reading, fishing, hiking, night, fishing, night flying, hiking backpacking etc Inch and millimeter scales for mapping or plotting.Map measuring scales Protractor compass for measuring direction.Lanyard hole on the base plate for easy carrying Luminous needles and points for navigation in the dark.Rotating dial and large magnifying glass.Rotating adjustable navigation ring for map reading. Baseplate Ruler Map Scale Compass Scouts Camping Hiking . A vacuum oil compass (red pointing north). magnifier 1:25000 ratio of rulers measures. 1:50,000 scale ratio. Accuracy up to 1mm. FAQ label template. Can be used as a scale for graduation, let children learn to use a compass to determine the direction. It can be used to confirm the direction of house construction. Color: Transparent color+red Material: Acrylic + ABS Size:128*60*16mm package: 1* Compass map ruler 1* Lanyard Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.