The Vernier picket fence has 2.5 cm wide black stripes with 2.5 cm clear spaces between the black stripes. The Pasco picket fence (ME-9377A) has 2 cm wide black stripes with 3 cm clear spaces in between the black stripes. Since the Pasco picket fence has the same leading edge to leading edge distance as the Vernier picket, the Pasco picket fence will work with Vernier equipment and software.