Gucci Black Plexiglass Heart Key Ring Charm with Swarovski Crystals 354361 plexiglass No Closure closure Gucci Black Plexiglass Heart Key Ring Charm with Swarovski Crystals 354361 Measurements (lettering and hardware): 5 height x 2.5 length inches. Black plexiglass with multicolor swarovski crystals. Light fine gold-toned hardware. Gucci charm 354361 J33YG 1093, made in Italy. Gucci Charm 354361 J33YG 1093 New with Tags. This designer product listed by Luxury Finders on Amazon is unused, new with authenticity cards, controllato cards, and Gucci box. Free 2-day shipping with order.