Polished Cast Iron Necklace Mandrel. Perfect for forming your custom made necklaces and neck rings. You can work metals or use the neck mandrel to form wax with this economy model crafted in India. Measures 8-1/2" x 7-3/4" x 7". Weighs 6.5 lbs. Wire will conform to the natural shape of the neck. Create exquisite pieces by putting your round or half round wire between leather. Use a rawhide hammer to flatten wire for that artisan look of hand hammered wire that is so popular!