A Gelli plate is a clear gelatinous slab that you roll acrylic paint onto and use to pull prints from. Use any brand acrylic paints, fluid or thick, for different results . You can incorporate different tools and techniques to get even more variations. The paint glides easily across the surface of the Gelli plate when it is rolled (or brushed) on, and then transfers easily to the surface of whatever paper you are printing onto.