Perfect learning and teaching tools for school, office, or home use. Especially for school students and teachers. As a gift for children when Children's Day. It is made of natural wood. The textures on each ruler are slightly different. We have extra length, 6 Inch, 8 Inch, and 12 Inch, ruler. The price is for 6 inches. Custom Logo available. Quantity over 15000 piece is the price of sea transportation.