1. The triangle indicating arrow can point to the north direction of the magnetic field2. The small window on the side is the red reference line, which is easy to read the azimuth data3. The 0 degree and 180 degree positions of the scale ring are respectively equipped with positioning posts, and the target direction can be set by rotating the scale ring4. The compass adopts a balanced design, suitable for both the northern and southern hemispheres5. The internal teeth of the scale ring make the scale ring more accurate and effectively reduce the direction error6. Light-absorbing compass, can absorb sunlight, lights and other light sources, and emit luminous light in dark conditions7. Elastic cord straps are tight and resistant to pulling, and the binding method can be adjusted at will8. Purpose: to guide the direction underwater9. Material: ABS+plexiglass10. Depth of underwater diving: less than or equal to 50 meters11. Underwater working temperature: -30 to 60 degrees Celsius12. Size: 8.2x6.2x3.5cm13. Weight: about 90gSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 10cm * 8cm * 5cm / 3.94inch * 3.15inch * 1.97inch Qty per Carton 288 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 288 pcs = 50976 pcs40HQ: 412 cartons * 288 pcs = 118656 pcs