Pressure-resistant, durable polyester fiber tip. Equipped with V and TPF systems for intensely vibrant colors that won't fade and a continuous ink flow until the last drop. No pumping required. Ink level visible at all times. Suitable for whiteboards, flip charts, etc. Environmentally friendly: made from 93% recycled material (excluding consumables). Plastic-free packaging and 100% recyclable. Biocidal product: No. Line width: 2.3 mm. Ink color: black. Color execution: black. Tip: round tip. Mechanism: cap model. Writing fluid: alcohol-based ink. Replaceable tip: No. Grip zone: round. Can be left open for several days without drying out: No. Refillable: Yes. Quick-drying: No. Clip included: No. Cap can be placed on the other end: Yes. Delivery composition: includes 10 cartridges 5003. Shaft material: plastic, 93% recycled. Shaft color: black. Pack quantity: 10 pcs/pack.