Made of high-end durable copper, has good rust resistance, wear resistance and durability. With engraving scale, it can be observed clearly. It is marked with a precision bar an aid to precision scaling, better display size proportion come with 4 of marked proportion for hardwood (1:7, 1:8) or softwood (1: 5, 1:6) to meet different needs. Convenient easy to use, works well for beginners for beginners. It makes simple angles precise. Small and portable, ideal for precise quick layout. Product Description Specification: < p>Material: copper Size: App. 94x40x44mm Color: Golden Quantity: 1pc Note: Please allow 0-1mm error due to measurement manual, make sure you do not mind before you bid. Due to difference between monitors, the picture may not reflect actual color of the item. ! Package includes: 1 x Dovetail Gauge