Giant international refill in standard 'Parker-style'. Wear-resistant stainless-steel tip ensures smooth and consistent delivery until the ink supply is completely used. Approx 10,000m of writing. Waterproof to ISO 12757-2 standard. Fits all Schneider 'Plug & Play' ballpoints, and many other pen brands which use the Parker-style refill. Medium point writes approx 0.4mm line. Also available in fine or broad point. Large-capacity metal refill in ISO format G2 Refill type: red ink. Medium line width (M). Permanent in accordance with ISO 12757-2 The wear-resistant stainless steel tip guarantees that the large paste supply can be used completely and without smearing Suitable for all Schneider ballpoint pens with plug and play system and many other brands Box contents: pack of 10 Schneider Express 735 M ballpoint pen refills (ISO 12757-2 G2, indelible) red