Feature:_x000D_ _x000D_ The product is made of pure copper, which is not easy to rust and has a long service life. _x000D_ Copper is a relatively soft metal. The ruler made of this material is comfortable to hold. _x000D_ The scale is engraved by a precision machine. The figures are very clear and easy to read. _x000D_ The product is compact, portable and suitable for outdoor operation. _x000D_ Whether it's archaeological work or students doing experiments, this product is very suitable. _x000D_ _x000D_ Specification:_x000D_ Material: Copper_x000D_ _x000D_ Weight: 34g / 1.2oz _x000D_ Measuring range: 0-80mm / 0-3.1in_x000D_ _x000D_ Read value: 0.1mm_x000D_ _x000D_ Product dimension: 9.7*3.3*0.2cm / 3.8*1.3*0.1in_x000D_ _x000D_ Package list:_x000D_ 1 * Vernier Caliper_x000D_ _x000D_ Note:_x000D_ The actual product color may deviate from the photo due to light._x000D_ There may be a slight deviation in the measurement of product.