These black Cross ballpoint refills are versatile and have been designed to fit the Classic Century, Century II, Townsend, ATX, Peerless 125, Botanica, Bailey, Calais, Beverly, Tech2 and Coventry collections. The fine nib refills feature a rolling ball end to help produce a smooth line on your page. The ink inside is fast drying and designed to help reduce the number of smudges on your work for a clean finish. The fine nib is ideal for those who prefer a thinner line when writing.