The puzzle necklace is made out of high quality stainless steel that will protect the necklace from tarnishing, fade, or oxidize in color. It comes in 3 polished colors, silver, gold, and rose gold and can be engraved with 1 letter or icon on the right corner. The necklace comes ready to be gifted in a gift box with a card and drawstring pouch. Perfect gift for father's day, Valentine's day, Christmas, anniversaries, and birthdays. Product Specs: Material: Stainless Steel Size: 0.3"x0.4" Chain: 16"+2" Cable chain with lobster clasp Personalization Instructions: Font: Engrave: Max 1 letter or icon.