The Stabilo Boss pens are filled with water-based and fast-drying ink

plus a Colorless Blender for softening and mixing those colors into gradients directly on the page

Its unique T-shaped design allows broad coverage as well as thin lines

Ecoline watercolor is a bit sensitive to UV-light

A broad range of secondary and tertiary tones can be produced through layering and wet blending

talens 064 concentrated fixative spray 400 ml Relfy The Stabilo Boss pens areThe 400 ml Talens 064 is a concentrated fixative formula in a wide valve aerosol can, built for covering large surfaces full sketchbook spreads, big charcoal pieces, or a series of pastel works with an even, fine mist rather than working section by section with a smaller can. That even distribution matters most on bigger pieces, since uneven spraying on a large surface is more likely to leave visible spotting or pooling on delicate powdery highlights.