Widely Used: Apply to determine the exact position of the center of the board during board cutting, pin joints, assembly, etc. You can move the scribe to draw 1/16 inch, 3/16 inch, 5/16 inch, 7/16 inch, 1/8 inch, 1/4 inch, 3/8 inch, 1/2 inch edge. Convenient to use: The bottom features magnetism, the center line locator can be attached to the iron surface, and the pencil can also be inserted into the hole in the foot. The pencil is not easy to be lost and is convenient for storage. Specifications: Material: ABS plastic Size: 100 x 60 x 50 mm/ 3.9 x 2.4 x 2.0 inches Quantity: 8 pieces Color: as the picture shown Package Includes: 4 x Center Scribers (2 blue color & 2 gray color) 4 x Wooden Pencils