These stainless steel trackables can be used as shoelace charms or can be added to jewelry or sewn to a patch. They make great gifts for Geocachers, or anyone that wants to dip their feet into Geocaches around the world! Each package contains two Travel Bug® Trekkers with one tracking code (there is an identical code engraved onto each charm). The Trekkers are Stainless Steel and trackable at Geocaching.com with a Travel Bug icon. Dimensions: Approximately 1.25 inches x 0.44 inches.