b' Feature - Color: Blue. - Material: ABS. - Size: 15 x 10 x 5cm. - Easy to use. Just need to insert the pencil into center of jig and make your mark. - Suitable tool for woodworking to determine the exact location of the center of the board during plate cutting, pin joint, assembly, etc. -Not only can mark the center of the plate with a thickness of 64mm, also can let you move the scribe to draw 1/16 3/16 5/16 7/16 1/8 1/4 3/8 1/2 edge. - Great for making reference lines for drilling holes. for marking out mortises and rabbets. - Warm Tip: Dear buyer, due to lighting effect, monitor s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand