Fixing loop at one end for connecting with a Larks head/foot hitch or a small karabiner.
Originally developed by military forces, ranger pace-counting beads are a great way to measure distances travelled by foot. A set of ranger beads is merely a lanyard with two sets of beads; the bottom section has nine and the top section has five. The beads are moved at various distances to count your total distance walked.
Measure how many steps it takes for you to walk 100m. Now when you walk, for every 100m you walk move one of the 9 lower beads up. On the tenth time instead move one of the 5 upper beads up and pull all 9 of the lower beads back down to reset; this indicates that you have walked 1km. You can measure up to 5km with this configuration of beads.