Open Box Hollis Polyester Signal Marker Buoys size-220v With a tilt-compensated 3D digital

With a tilt-compensated 3D digital compass and wireless air integration

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

functionality

w/o TAB) is a compact instrument designed for scuba and diving gear setups

it serves as a dependable backup in cave diving

Open Box Hollis Polyester Signal Marker Buoys size-220v With a tilt-compensated 3D digitalThe 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