Custom Geocaching Pocket Stamp - Hiker Cache Custom Geocaching Stamp Custom Geocaching Pocket Stamp - Hiker Cache Custom Geocaching Stamp The default color on the Geocaching Stamp is BLACK INK. If you would like another color, please contact us. Geocaching can be exciting for everyone and a fantastic way to spend uninteresting days! Stamp impression size is approximately 1.5" x .563". Self Inking Pocket Stamp is built to last for thousands of impressions Order today. Ships Tomorrow from our sunny Jacksonville, FL warehouse!!!