ilauke Tactical Professional Military Army Optical Sighting Compass with Inclinometer & Noctilucent for Camping Hiking Sighting window with sighting line and luminous function, easy to be seen at darkness. Reference table to estimate distance and scope; Slider ruler; Magnifying glass Floating compass dial with 360scale, Rotary dial with 360 scale and with Bubble level Size: 95*66*28mm; Color: Green; Material: Metal This military army compass with luminous display inside. However, it needs to be exposed under sunshine for 3 to 4 hours and will be luminous in the dark.