This is a key chain we created out of 1/4 Oak wood and added a split key ring. The text is engraved deeply, then we fill the engraved areas with black powder coat paint. The engraved area will then be engraved at a lower power setting to melt the paint into the engraved areas. If you're confused about what the "603" stands for, it's the area code of New Hampshire. These key chains are roughly 2.75 inches by 1.25 inches in size.