Features: Portable underwater navigation compass with clear font and scale, easy to read data, can dive down to 50 meters deep. With a transparent lens, larger window opening, easy to aim, the dial can be tilted up to 30. The dial has built-in fluorescent material, which can absorb light source and emit luminescence in dark conditions, easy to read. High-quality ABS material, with nice durability, strong and anti-aging. Small and lightweight, easy to carry. With adhesive wrist band, fixed firmly, easy to wear, perfect for diving, camping, cycling or other outdoor activities. Specifications: Color: Black Material: ABS Item Size: 53 * 42.5 * 15.5mm/ 2.1 * 1.7 * 0.6in Item Weight: 21g/ 0.7oz Package Size: 81 * 62 * 32mm/ 3.2 * 2.4 * 1.3in Package Weight: 32g/ 1.1oz Packing List: 1 * Compass 1 * Wristband