The scale of the woodworking straight and arc scribing tool is clearly visible. You can draw circles or lines as needed. The product is small and lightweight, and my good tool is always a good investment for a handyman. Name: Multifunctional scribing tool with construction pencil Product size: about 15.3in*12.79in*7.28in Weight: about 3.52oz Material: ABS + Aluminum Alloy packing list: 1 x Multifunctional scribing tool Read more It's small and convenient to fit in your pocket. You just need to change the tightness of the pen holder and nut to achieve different shapes to suit your needs. Lockable and fixed after each adjustment to ensure accuracy and ease of use Read more Switchable in multiple modes, free and accurate measurement, saves you the trouble of measuring and guessing, is a good measurement tool, it can be used for tile and paving, stud wall, gable and paneling, infill, shop decoration and Built-in furniture