Plastic round black size dividers, imprinted for organizing clothing racks by size.. The outer diameter of the round size divider measures 3 1/2" in width with a 1 3/8” center opening. Fits a 1 ¼” round hangrail and/or a 1” square hangrail. These round "bagel" size dividers are sold with options of imprinting numerical sizes in white, gold or silver. Sold individually, choose your own quantity. Select imprinting color and sizing options below.