i bought a round ring (silver metal) with a hook on it that looks like the hanger hook on a hanger at jo ann fabrics the ring is not connected in a full circle but has a slot where you can hang rulers thru it i keep my straight rullers on one and the square rulers on the other ,on a peg behind the door in my sewing room , i love it i think i paid 9.00 for the hook but you can use a coupon on it , i have seen them other places also in craft stores