A milestone to celebrate...this sterling silver charm trio is a lasting reminder of a special birthday. You can even make it personal with a choice of birthstone and an engraving. Charms include "Happy Birthday" Cake 15mm x 10mm, Engravable Swarovski® Crystal Birthstone Tag 18mm x 9mm, and Toasting Glasses 16mm x 8mm. For name engraving, enter up to 8 letters. For monogram engraving, enter up to three letters in the order you wish them to appear. Three letter initial monograms are traditionally engraved with the initial of the last name as the larger center letter.