Round 1: Chain 3, loop the chain back to the 1st chain. Add 15 single stitches in the center of the circle you just created. Chain 40 -- This will form the hanger. Loop the chain (hanger) back to the beginning of round 1 and add 1 single stitch to connect the hanger and with the ring.
Round 2 thru 6: 6 single stitches in each chain of the 15 chains.