Urim & Thummim cufflinks and tie clips deluxe set. You get 3 tie clips and 4 cufflinks. You can mix and match them. The stones are 16mm round. These are the stones Used for the Urim and Thummim in ancient times. Stones come with information about them. History: Urim and Thummim Exodus 28:30 "And thou shalt put in the breastplate of judgment the Urim and Thummim; they shall be upon Aaron's heart when he goeth in before the Lord." The Urim and Thummim was God's way of answering His people. Urim (אורים) means light and Thummim (תמים) probably means darkness/truth. Possible recreation; Urim, white stone means no for an answer, and Thummim black stone means yes.