Viking God Thor's magical hammer, an invincible weapon of supernatural strength, was worn as a powerful amulet for personal and psychic protection. For Personal and Psychic Protection. Approximate size: 1.25" x 1.75" Crafted in lead-free pewter, silver and/or gold, and beautifully embellished with Swarovski crystals. Each piece, attractively presented with a description of its legend and purpose, comes with a matching chain and jewelry box.