The Mares' Diver's Alert Marker is one of the most popular SMBs on the market. It is highly visible in bright orange, has a reflective band at the top for extra visibility and 'diver below' markings ensuring you are easily seen.

It can be infladed with your inflator hose or by mouth and has an overexpansion one-way valve.

Features:

• Dimensions: Height: 180cm / Width: 15cm
  
• 5m Reflective solas band
• Overpressure valve
• Seal Sealing