207 BLX Retractable Gel Pens feature bend-resistant stainless steel medium tip (0.7mm) and tungsten carbide rollerball. Rich pigmented ink delivers an exceptionally smooth writing experience for intense vibrant lines. Medium point strikes the perfect balance between bold detailed lines. Quick-drying uni Super Ink is perfect for taking notes making lists signing checks and legal documents and embellishing projects. Innovative uni Super Ink technology effectively entraps liquid ink into the paper producing fraud-resistant fade-resistant and water-resistant documents that prevent check washing and bleaching. Pens withstand cabin pressure variances without leaking. Exclusive uni-Flow Ink System ensures a consistent fluid writing experience. Translucent window lets you see when your ink is low to avoid running out. Color adds an element of drama to your everyday tasks and creative writing projects.