You can change the shape of the scribing tool according to your needs, just adjust the tightness of the pen holder and nut to change different shapes to meet your needs, such as counting mode, scribing mode, compass mode and edge rule Stencils, over 15 marking applications The base of this multifunctional scribing tool is made of high-quality aluminum alloy material, which is very durable and wear-resistant, making it more comfortable to hold during use. The deep hole nib is made of metal and will not break or be damaged during construction; you can your painting work effortlessly The marking tool is equipped with a sturdy knob, which can well prevent the instrument from rolling. Allows you to easily maintain a consistent scribe offset during use that stays parallel to the surface every time. Just adjust the knob and you can change its mode according to your needs. You can draw parallel lines and arcs according to your own ideas, which is very convenient to operate Contour gauge, with 1 pen and refills of different colors (black, red, yellow), they come in a box, not easy to crush. Refills of different colors will be clearer and meet your different usage scenarios The contour planning line tool can be used to measure the shape of irregular objects, with more than 15 marking applications on metal, plastic, glass, wood, paper, filler panels, store accessories and built-in furniture, etc. Small and , easy to use you go out with colour: as shown Material: aluminum alloy Package Contents: 1 set x scribing tool Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.