Scuba Line Markers

Line markers I created to lay out a line course for students to measure kick cycles, gas consumption vs time, jump to another line, etc.  Any instructors out there know how quickly students forget what you briefed, so I added temporary markers that can be placed anywhere along the line.

The marker holes are sized for #36 line and there are small format and large format markers.  For both, you can pull some slack through the marker and tie a small knot to allow for a weight to be attached or add an up line to a DSMB.