shangda Compass Map Scale Ruler for Map reading

Description

Description: Portable and high performance, multi-function combined into one With military grade compass and rotating oil filled dial With Luminous needles points for navigation in the dark Rotating dial and large magnifying glass Size: Approx. 12.5 x 6 cm (4.92'' x 2.36'') Rope Length: Approx. 106cm (41.73'') Quantity: 1 Piece Map measuring scales mm 1:25,000 & 1:50,000 & 1:63360 Ideal for orienteering, hiking, camping and many other outdoor activities Package Included: 1 x Camping maintenance: 1. Use and place the compass when not close to ferromagnetic objects, high voltage lines and electromagnetic devices, so as to avoid errors and reduce the compass sensitivity. 2. When not in use, should be placed in a ventilated, dry place, so as to avoid mold. 3. Head-mounted mirror, anti-word card seat do not twist, so as not to affect the use of precision. 4. When the surface of the stain, the white flannel can be used to gently wipe the surface to keep the surface smooth