TrollFoil is a framed articulation foil used when adjusting composite fillings, dentures, crowns and also when doing general analytical work on articulating and occlusion. The double-sided foil is only 8 microns thick, and it has no problem marking wet surfaces, dry surfaces or highly polished surfaces such as cast gold or BruxZir. Frames measure 3" x 3/4". Available in two colors.