•Retractable ballpoint pen with a push button at the top end (click system). •Transparent plastic body that allows you to see the ink level at all times. •With clip and grip for a more comfortable grip when writing. •Oil-based ink and 1 nib.0 mm that glides over the paper with total fluidity. •Size: 145 mm. Blister of 12 units: 4 blue, 4 black, 2 red and 2 green. PS, ink.