R and F Pigment Sticks are artist grade oil sticks, literally oil paint in stick form. Expensive yet worth the money.
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R&F Handmade Paints Oil Pigment Stick 38ml Blending Stick
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R&F Pigment Sticks
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R F Handmade Paints Pigment Sticks 188 mL Neutral White - Office Depot
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PREMIUM QUALITY ARTIST OIL – R&F Pigment Sticks are a solvent free, linseed oil-based paint in stick form, the stick makes it possible to dispense
R&F Handmade Paints 2950 Oil Pigment Stick Set of 12 Colors Painters Dozen
Talking about R&F Oil Pigment Sticks