Cool Jewels&reg; Wolf Head Color Changing Mood Pendant with Link Chain Necklace Mood pendant in wolf head shape Link chain necklace Pendant is 1 1/8" x 1/2" Pendant changes color based on mood changes Cool Jewels strives to ensure this jewelry is lead, cadmium and nickel-free and that it meets all CPSA guidelines for safety. Towards this end, our jewelry is periodically tested and certified accordingly.