Designed and manufactured with precision for optimal performance, the rOtring Isograph College set contains everything you need to complete your projects on time. Equipped with three high-precision technical pens with refillable ink reservoirs, it is perfect for students. The pens are durable, and the chrome fine tip ensures high detail accuracy. When it's time to switch to a mechanical pencil, the Tikky is ideal for writing, drawing, or sketching throughout the day. A pack of 12 polymer leads is included for refills. A bottle of highly pigmented ink, a top-quality eraser, and a compass accessory are also included for all your needs. * Set of 3 high-precision technical pens with 0.25mm, 0.35mm, and 0.5mm tips. * Hard chrome fine tip, wear-resistant, for high-quality detail work. * The 0.5mm Tikky mechanical pencil is lightweight, allowing you to write all day. The polymer lead is strong and flexible. * The 23ml ink is composed of high-density pigment particles for better opacity and greater light resistance. * The B20 eraser erases without traces or smudges, and the compass accessory is ideal for versatile use.