Open Box Hollis Polyester Signal Marker Buoys size-220v Key design elements include four

Key design elements include four stainless steel D-rings for attaching gear

and includes a backlit display for readability in low-light conditions

2 High Pressure Ports (7/16”-20 UNF)

Increasing and controlling your buoyancy can keep you from getting fatigued while snorkeling

Fantasea housings equipped with an M16 port*

Open Box Hollis Polyester Signal Marker Buoys size-220v Key design elements include fourThe Hollis Signal Marker Buoy (SMB) is a great safety devise that all serious divers 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. Buoy is a Closed Cell Design made from Durable 300 D Polyester material with Radio Frequency (RF) Welded Seams. The Hollis SMB also has a Sturdy Nylon