6pcs of Mix Color Bison Tubes

These Bison Tubes are made with anodized aluminum construction.  These Geocaching Bison Tubes have a rubber sealed for air tight protection. These tubes come with a mini key ring and measure approximately (ring included) 2 3/4"x 7/8".  Bison Tubes come in assorted colors blue, black, green, purple, red, and silver The ring size is 5/8".