Zinc Alloy metal key tags are gold plated.  They measure 1 5/8" X 1 3/8".  Attached is a 1 1/4" split ring.  These can be purchased either in bulk or on cards.

PF1/12 - 12/CARD
1 - 5 Cards = $8.85/Card
6 - 23 Cards = $6.40/Card
24+ Cards = 5.90/Card

PF1X - BULK
12-95 Pcs = $.70 each
96 - 959 Pcs = $.49 each
960+ Pcs = $.44 each