The Hollis Marker Buoy "SMB" is an essential safety device all divers should carry on every dive. The SMB is the smart-way for a diver to mark their location when making safety stops, completing mandatory decompression stops, and signaling the boat if they surface a distance away from the boat.
- Self Sealing Base to Maintain Flotation on Surface
- Can be filled manually or by low pressure inflator hose with adapter
- Over pressure relief valve
- Color: Hi-Viz International Orange
- Length: 62 inches