Features: Made of high quality metal and ABS, it is durable to use. The adjustable pencil holder holds any marker (2-12mm) so you can continue to use your favorite marker. Precision wheels are perfectly sized and have the smoothest rolling action to avoid damage to finished surfaces. Perfect for marking out very complex profiles such as skirting, stone walls or lintel boards, ensuring a perfect fit every time. Suitable for floor laying, carpet cutting and ceramics. Specification: brand new with high quality Material:Metal+ABS Size:233x35x27mm/9.17x1.38x27mm Package Included: 1 xContour Gauge Note: The colors may be a little difference for the different monitor display. Please check as much as possible to make sure the item is the one that you need. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)