AKONA AK SMB W/ LIGHTS, Surface Marker BuoyAK SMB with Lights Surface Marker Buoy with Illumination The SMB with Lights enhances diver visibility during ascents and surface intervals, especially in low light or night diving conditions. Designed for reliable deployment and enhanced signaling, this surface marker buoy adds an extra layer of safety underwater. Integrated Light System Improves visibility in low light conditions. High Visibility Color Easy detection at the surface. Durable