There are a few versions of the Elder Sign. This one here is a copy of the drawing made by Lovecraft in one of his letters to Clark Ashton Smith.
The pendant is made of sterling (925) silver. It's dimensions are: 1.8cm (0.7 inch) by 3.1cm (1.2 inch). The pendant's loop is 3,5mm (0,13 inch) wide.
The product does not contain nickel and is hypoallergenic.
A leather cord is included with the pendant.