Keeping spool (with SMB attached) from unwinding underwater

Description

Scuba Diving Surface Markers

Types of Surface Marker Buoys & How to Use Them - AquaViews

Keeping spool (with SMB attached) from unwinding underwater, Page 6

DIR- GUE - Spool to SMB attachment, Page 3

DIR- GUE - Spool to SMB attachment, Page 3

5ft Scuba Diving Surface Marker Buoy (SMB), Safety Sausage with Plastic 98ft Finger Spool Reel and Double Ended Hook Clip + Emergency Whistle for Underwater Diving Yellow

Keeping spool (with SMB attached) from unwinding underwater, Page 6

DIR- GUE - Spool to SMB attachment, Page 3

How to use a double ended bolt snap - Alert Diver Magazine

Keeping spool (with SMB attached) from unwinding underwater, Page 6

Keeping spool (with SMB attached) from unwinding underwater, Page 4

Scuba Diving Surface Markers

DIR- GUE - Spool to SMB attachment, Page 3

Scuba Surface Marker Buoy (SMB) Set, 5ft Hi-Visibility Reflective Band Open Bottom Safety Sausage with 100ft Alloy Finger Spool Dive Reel and Double-ended Snap Hook Fits Underwater Fluorescent Yellow

Distance line - Wikipedia