Product selling points: 1. Draw a parallel line 2. Draw equidistant arcs 3. Scalable, adjustable range is 0-120mm 4. Aluminum alloy body, brass nut and stainless steel ruler, high hardness, not easy to rust, stable and durable 5. High-precision scale, accurate marking Linear arc dual-: The scribe has a stainless steel roller, without a dead shaft, it can draw a circle instead of drawing parallel lines. Ergonomic design: aluminum alloy body, surface treatment, high polymer hardness, comfortable grip, abrasion resistance, scratch resistance and durability. Wide application range: It can be used for various materials, such as ceramics, iron, acrylic, wood, glass, etc., to make your work easier. Universal pen holder: suitable for newly upgraded - paper clips, refills, needles, pencils, etc. The ultra-sharp knives are hardened and engraved with sharp and , which can cut wood fibers to prevent grains from falling off. Perfect details: The scale is clearly visible and easy to measure. It can be doubled as a depth gauge. It is fast and easy to operate, and it feels balanced. Product parameters: Line drawing range: 0-120mm Surface treatment: anodic oxidation Product size: 220 x 50 x 77mm Color: Silver Material: aluminum alloy Package Contents: 1 x Scribing Tool Only the above package content, other products are not included. Note: Light reflection 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.