Bend the piece of coat hanger to make the large arm.cut that you will need,and bend them.cut and bend them carefully with the pliers.assemble the mobile by trying the small arms to the large arm,and by tying the fins to the large and small arms.tie the string tightly.hang some pieces a little lower than other pieces.don't worry about the exact spacing of the strings and pieces.you should restring the mobile by eye after painting it.