Description Back after a long hiatus! Our Anderson Pens pre-packaged set of five ink sample vials and caps are the same ink sample vials that we use in store, sell online, and ship all over the world. We offer our empty sample vials for mixing or storing smaller quantities of ink or sending a sample of your favorite color to friends! The generous 5ml capacity is enough for multiple refills from most pens. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.