Features: Adjustment range: 0-20cm. Designed- with srew snap, more conveninent and firm to fix. It can move back and forth and adjust the size according to the width of the automobile wheel eyebrow rib line. Can be used in a variety of materials like ceramics, iron, acrylic, wood-, glass etc, making your job easier-. Comfortable grips, abrasion resistance-, scratch resistance- and durability. Package Includes: 1x Parallel Scriber Specifications: Material: metal Adjustment range: 0-20cm note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.