1. Luminous underwater guidance: This diving compass glows after absorbing light sources and provides clear visibility underwater. With easily readable phosphorescent numbers and needle card, it helps you navigate efficiently at depths of up to 50 meters, so you always know your direction during your underwater adventures. 2. Practical hose clamp design: Easily attach it to your diving tube for quick reference while diving. The compass features a practical hanging loop at the opposite end, allowing versatile attachment options with your other diving equipment and keeping your hands for swimming and exploring. 3. Solid construction: Made of sturdy ABS material and organic glass, this compass is built to withstand demanding underwater conditions. It operates reliably at underwater temperatures from 30 °C to 60 °C, making it suitable for diving in various water environments and climate zones. 4. Compact and practical size: With dimensions of 62 x 58 mm, this compass the perfect balance between readability and portability. The thoughtful reading window provides clear directional information without adding unnecessary mass to your diving equipment.