Carpenter Tool Profile Scribing Ruler Contour Gauge with Lock Professional GaugeFunction:Made of high-quality metal and ABS, durable.The adjustable pencil holder can hold any marker (2-640 mm), so you can continue to use itYour favorite mark.The precision wheels are of perfect size, the rolling motion is the most stable, avoiding damageTo the finished surface.Ideal for marking very complex contours, such as skirting, stone walls or door lintels,Make sure it fits perfectly every time.Suitable for floor laying, carpet cutting and ceramics.Material: Metal + ABSPackage Included:1 x Contour GaugeNotes:The color may vary slightly depending on the monitor.Please check as much as possible to make sure that the item is what you need.Due to manual measurement, please allow a 0.5-1 inch difference. (1 inch = 2.54 cm)