Hollis Closed Cell Marker Buoy
The Hollis Closed Cell Marker Buoy design is made from Durable 300-D Polyester material with Radio Frequency (RF) Welded Seams, and it also has a built-in dump valve for easily removing the air after dives so that the SMB can’t burst under pressures as it is deployed from depths.
The Hollis SMB also has a Sturdy Nylon Webbing Strap Loop with a Stainless Steel D-Ring for attachment to a Dive Reel or Spool or Anchor Line, along with a built-in Wrist Lanyard.

Sea Drops Anti-Fog
Faber Standard DIN/K 232 Bar Valve
Cressi Marseillaise Weight Belt Standard 1.5m
BCD Cam Band Stainless Steel
Hollis SMS 100 Weight Plate
