The Pentel EnerGel Permanent is a retractable, metal tip rollerball pen featuring waterproof, light-resistant, and fade-proof ink, making it ideal for cheques, contracts, and official documents. The ink flows smoothly, dries quickly, and is smudge-proof, beneficial for left-handed writers. It has a strong metal pocket clip and is made from 54% recycled materials. The pen has a 0.7mm tip that produces a 0.35mm line. It is refillable with Pentel EnerGel Permanent LRP refills. The ink is permanent, waterproof, and lightfast, certified to DIN ISO 27668-2:1999, and is ideal for signatures and important documents.