1.100% brand new and high quality,well constructed of Aluminum Alloy with high hardness,durable in use. 2.Clear scale make it easy to operate,insert the refill into the hole of the corresponding scale and move the ruler. 3.Auxiliary marking tools, suitable for woodworking and DIY woodwork enthusiasts. 4.Easy to use, small size, no space, high performance materials for a variety of applications., Manufacturer: Regun