This is a high-quality wrist band button compass, it will be set on a watch band or lanyard on a backpack. Military grade parts and luminous dial installed. It will be convenient to use in the evening, diving, forest or cave adventure.
Uses: Pointing navigation during mountaineering, hiking, cycling, diving
Luminous: Storing luminous
Stress test: 60M (197ft) underwater
Wearing method: strap-style, lanyard (A-20 for straps up to 20mm wide, A-25 for straps up to 25mm wide)
ITEM A-20: Product size: 22 * 22mm (0.87 * 0.87 in); Product thickness: 13mm (0.51 in); Net weight: 4.5g (0.16oz)
ITEM A-25: Product size: 27 * 27mm (1.06 * 1.06 in); Product thickness: 13mm (0.51 in); Net weight: 6.1g (0.22oz)
Kindly Note: Do not wear on a metal strap, it will affect the correct pointing. Before using in a dark place, store in strong light.