Product overview: Scuba Dive Signal Marker, a duck Bill SMB (Surface Marker Buoy) designed to be inflated by mouth, second stage regulator, or BCD inflator. It provides a clear underwater signal and helps locate divers. Key benefits: Improves underwater visibility with a large, easytosee buoy. Flexible inflation options for quick deployment and reliable performance. Durable construction from quality TBD material for lasting use. Versatile functionality, usable as a toy or demonstration prop in appropriate settings. Usage and functionality: Primary purpose: signaling and marking position during a dive to aid safety and coordination. Secondary use: can be used as a toy or educational prop, adding versatility for training or recreational activities. Material: Made from quality TBD material, chosen to balance durability and longevity. Size and visibility: Buoy dimensions: 180 cm x 15 cm (70.87 inches x 5.91 inches), providing strong visibility underwater. Inflation compatibility: Inflates via mouth, second stage regulator, or BCD inflator, enabling flexible and convenient deployment in diverse diving scenarios. Use scenarios: Scenario 1: Mark a dive site or a diver's location for buddy awareness and surface followup. Scenario 2: Signal to a boat, shore crew, or other divers on the surface about position or status. Scenario 3: Training drills or demonstrations, and recreational use as a visual aid or toy in appropriate environments.