FeaturesFibre tip Triplus colour penSturdy pressure resistant tipErgonomic triangular barrelWashable water based inkLine width 1.0mmThis Staedtler Triplus Color Fibre Tip Pen (Pack of 10) features a sturdy, pressure-resistant tip and ergonomic triangular-shaped barrel for comfort, even during extended use. The pen contains vibrant, water-based ink, which washes easily out of most fabrics and a ventilated cap for safety. This medium pen writes a 1.0mm line width for writing, drawing and colouring. This pack contains 10 pens in assorted, bright colours.