Get Accuracy And Control In An Ergonomic Design With These Tul Pens. Super-Smooth Ink Provides A Consistent Flow To Help Your Writing Look As It Should, And These Bp3 Pens Are Retractable To Prevent Stains And Stray Marks. Super-Smooth And Longer-Lasting Ink. Engineered For Optimal Balanced Writing Comfort. Retractable Tip Protects From Unintentional Marking. Refillable - Designed To Be Used Repeatedly, Helping You Avoid Single-Use Disposables And Potentially Save Money.