The lathe center is made of transparent acrylic that is thick enough, with a center hole and a clearly marked circle, allowing you to see exactly what you are doing, helping you to measure quickly and easily. The center probe tool is suitable for wood, poster board, plastic, metal, glass, composite materials, etc.! Suitable for woodturning, arts, crafts, school projects, and wood processing. Ideal for finding the center of logs, squares, and blanks Set the circle template on the work, move it to be satisfied with the center, mark the center with a pencil or point, and then draw the circle with a compass. Marking on logs with uneven edges, Weight: 0.0220462262 pounds, Manufacturer: Froiny