- Scuba cave diving Non-directional cookie (Round) line marker.
- Made from durable, non-corrosive plastic material for years of safe
- Highland markers are available in neon-yellow or glow-in-the-dark
versions for low light conditions.
- These markers fit perfectly on the highland cave marker holder.
- Line cookies have a 55mm diameter and are 3.8 thick.
- Mark your line with arrows for safe entry and exit of cave or wreck.
Markers, such as line arrows and cookies, are used on guidelines in overhead
environments. They provide critical information to divers following the line.
The Highland markers are strong and durable. They are available in
high-visibility neon-yellow or glow-in-the-dark. They can be written upon with a