White nylon plastic with a matte finish and slight grainy feel.
About this Product
Test piece designed to examine rule checking but is not manufacturable.
Bottom row has round "wires" ranging from 0.1mm to 2.5mm on a side with aspect ratios of 1:1. Other rows stretch these wires to have different aspect ratios of 2:1, 3:1, and 4:1 to examine transitioning between wires and walls.