This is a half dollar that has been cut and scalloped into an arrowhead. We then cut the arrowhead in half into a this design of howling wolves. Each side has a wolf and "best friends" engraved into each side. These pieces interlock perfectly like a puzzle.
An interlocking design is perfect because it unites two people. You give half to your special someone and every time they look at it, they think of you and the piece that fits it just right.