•Wear on thumb, easy to use with map in orienteering
•Strong magnetic pointer, fast pointing to the north,
•Professional scale easy to estimate the distance
•Waterproof, shockproof, luminous, no bubbles, and does not leak oil
•Durable and never degaussing in normal environments
•Excellent stable pointer, the pointer points steadily to the north even during the running or in a tilted state.