Expelliarmus - Hand Stamped Harry Potter Ring, Adjustable Aluminum A 1/4" wide aluminum ring, hand stamped with "Expelliarmus". Bright, sturdy aluminum is lightweight, hypoallergenic and will not tarnish. Hand stamped one letter at a time by Foxwise Jewelry. Foxwise is a collection of nerds and geeks making stuff for geeks and nerds since 2010. Quick shipping from California, US seller, ships in a gift box or bag