Product description: 1. A new tool for drawing and measuring circles can draw circles by opening and closing the top ring and give you inspiration. Easy to use. 2. The product is made of aluminum alloy and steel. The tool is not easy to rust and has high hardness. 3. The circle drawing tool is exquisite and precise, with precise scale, to help you draw accurate circles. With this gauge, you no longer need to worry about not drawing a circle. 4. This is a creative and practical drawing tool for carpenters, a good helper for designers, and brings you unlimited creative inspiration. 5. The round template ruler tool is a good tool for students' carpentry. It is also an ideal choice for carving, carpentry, sewing, sewing and hoisting. 6. Product diameter 12.5cm/4.92 inches, material: aluminum alloy steel Package content: 1 * Drawing tool ruler