This set of 4 gel pens come with black ink. With a 0.38mm nib the gel ink writing is smooth and clean. The plastic pen set is refillable and comes as seen in the first picture with one turquoise, one pink, one gold and one silver pen. Please note the gold and silver pens have two options - an open round top and a filled in round top with printing. Gold and silver pens will be filled based on stock available.