JinGuoZiLP Math Teaching Aids Brass Rulers Protractor for Triangle Ruler/Vernier Caliper Supply Straight Edge Tools

Features: brand new and Fine drawing process with both front and back sides, simple yet tasteful style with delicate texture. The for triangle ruler is carefully grinded on the edge that will not tear pocket on clothes, it is safe to carry. The product is much more durable and long-lasting compared to normal plastic rulers. Brass has the polydegeneration of colour and lustre, as the use will gradually natural oxidation, the colour and lustre will change with oxidation, formed a characteristic restoring ancient flavor, full of for time feeling. Due to strong durability,It can be used for any occasion, such as life, study, work, experiment, etc. Specifications: Material:Metal Type:15cm Copper Straight Edge,15cm Brass Straight Edge,Brass for Triangle Ruler,Brass Equilateral for Triangle Ruler,Brass Protractor,12cm Brass Straight Edge,15cm Wide Brass Straight Edge,6cm Brass Straight Edge,Small Vernier Caliper,Big Vernier Caliper Net Weight:35-58g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Straight Edge or 1x for Triangle Ruler or 1x Protractor or 1x Vernier Caliper