Halcyon Diver's ALERT MARKER CLOSED WITH OPV Twinset Bands & Accessories The heel section incorporates a

The heel section incorporates a fin strap keeper to eliminate strap slippage during the dive

I-Span super-stretch nylon

Training Prerequisite You must have completed the required Open Water theory and pool training

this mount features laser engravings for added grip and precision

Halcyon Diver's ALERT MARKER CLOSED WITH OPV Twinset Bands & Accessories The heel section incorporates aHalcyon Diver's Alert Marker Oral with OPV 1m Halcyon Diver's Alert Marker Oral with OPV 1m specification Easily inflated at depth Divers Alert Markers use an integrated over pressure relief valve, allowing them to be deployed from depth Oral inflate marker does not use a pressure relief valve; it is only suitable for surface deployment When deflated, all markers fit in a Halcyon thigh pocket or backplate MC Storage Pak Big and Super Big Alert Markers