Use with included universal adapter to modernize faucets. Each pair includes 1 marked hot and 1 marked cold. Small: 1-5/16 in H x 1-7/16 in base x 1-11/16 in hole center to extended tip. Large: 1-5/16 in H x 1-5/8 in base x 1-7/8 in hole center to extended tip. Chromeplated.