Secure connection to snorkel clamp retainer: the Compass is equipped with a snorkel clamp retainer that allows it to be securely attached to a ventilation tube or diving mask. This ensures that the compass stays in place during underwater activities. DURABLE CONSTRUCTION FOR UNDERWATER USE: The compass is made of ABS material to withstand the harsh conditions of the underwater environment. Waterproof and non-corrosive to ensure long-lasting performance. LIGHTED UNDERWATER COMPASS WITH SIDE WINDOW: Designed for night diving, this compass has a lighted feature that makes it easy to read in low light conditions. The side window provides a clear view of the compass heading. 50M Depth Navigation: Designed for underwater use, this dive compass is equipped with a magnetic needle for precise navigation at depths of up to 50m. It comes with a clip that easily attaches to your dive gear or wrist strap. RELIABLE DIVING NAVIGATION TOOL: Whether you're exploring underwater caves or navigating coral reefs, this compass is a reliable tool to help you stay on course during your diving adventures.