Official site

Line Marker Round

The round line marker (commonly known as a "cookie") is an essential piece of equipment for every technical and cave diver. Featuring a 55 mm diameter and a 3 mm thickness, it is perfect for quick and reliable marking of critical points, directions, and safety references on the dive line. Its compact design ensures easy handling, even when wearing thick neoprene gloves. Constructed from highly durable materials resistant to salt water and mechanical wear, this marker is built to last. It is available in multiple high-visibility colors (white, yellow, red, blue), allowing divers to implement effective color-coding systems for better organization during challenging cave or wreck penetrations.