The Pilot Acroball pen is a superior retractable ballpoint pen with an advanced ink formula which is super smooth and quick drying | The modern, semi-transparent barrel denotes the ink colour and the unique rubber tyre grip enables you to grip the barrel tightly, enhancing your writing technique | The Acroball ink is resistant to water, light, alcohol, acid, ammonia, bleach, acetone, oil and more | It is cheque safe and archive safe | Write out distance 700m | Refillable with Pilot BRFV-10 refills