1The compass made of high quality ABS and polymethyl methacrylate material, sturdy and durable. 2Lightweight wristband designed, convenient to carry and use. 3Very suitable for underwater caving expedition, diving, snorkeling, fishing, camping, etc. 4Compass has triangular instruction arrowhead pointing north direction of the magnetic field. 5Side small view window and red datum line, convenient to read azimuth data. 6Positioning column, scale circle set at position 0 and 180 respectively, rotation scale circle can set target direction. 7Compass designed in balanced way, compass will not inclined to rub against the window frame and cause the compass to get stuck under non-horizontal conditions. Scientific designed applies to both hemispheres. 8Accurate and precise scale circle with internal clamping teeth makes the scale circle more accurate and effectively reduces the directional error, 50 meters waterproof for deep water operation. 9Liquid filled light absorption compass, can absorb sunlight, light and other light sources, in dark conditions to emit night light. 10Detachable rubber watchband with not easy to rust the pure copper pin buckle, remove the watchband can used to wear the rope.Condition: 100% Item Type: Diving Compass Model: CP-991 Material: ABS + Polymethyl Methacrylate Optional Color: Blue, Yellow, Gray Weight: Approx. 170g Size: Approx. 6.5x6.5x3.6cm/2.56x2.56x1.42inch1 xDiving Compass1 x Manual