Features: There are 2 different types, blue & black ,purple & black, colorful apperance. Cute foldable ruler with locking button, it's lovely, and easy to carry. Draw many patterns of square, star, triangle, round, arrow, heart-shaped, building up an interesting painting, improving children's imagination. Such ruler is made aluminum alloy of materials in high quality, which makes itself getting great popularity. Great for children, student to use at home or school, and office staff. Package Includes: 1x Aluminum Alloy Ruler Specifications: Material: Aluminum Alloy Size: 16cm/ 6.3 in Measuirng Range: 30cm note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. There are 2 different types, blue & black ,purple & black, colorful apperance. Cute foldable ruler with locking button, it's lovely, and easy to carry. Draw many patterns of square, star, triangle, round, arrow, heart-shaped, building up an interesting painting, improving children's imagination. Such ruler is made aluminum alloy of materials in high quality, which makes itself getting great popularity. Great for children, student to use at home or school, and office staff.