Frankenstein choker necklace with red resin heart Frankenstein necklace or choker. The center monster piece is a 1 x 1 inch heart shape. The necklace/choker will fit 16 to 17 inches with a silver plate large link chain and silver plated lobster claw clasp (it can be lengthened upon request at no extra charge). The piece is light and easy to wear. Part of the red monster series.