Adjustable: its perimeter can be enlarged or reduced. It can be used to draw round measurements and so on. Material: Made of aluminum alloy and stainless steel, good corrosion resistance, not easy to rust. Portable: It is a plotter easy to carry, and can be used in industry. Application: It is a completely redesigned tool for drawing and measuring perfect circles. Easy to use: just twist the rings to open and close its captivating opening mechanism. Features:Application: It is a completely redesigned tool for drawing and measuring perfect circles.Material: Made of aluminum alloy and steel stainless, good corrosion resistance, not easy to rust. Adjustable: its perimeter can be enlarged or reduced. It can be used to draw round measurements etc. captivating opening mechanism.Specifications:Type: Circle Drawing ToolMaterial: Aluminum Alloy, Stainless SteelColor: Gold+SilverInner diameter: approx. 7.9cm/3.11inchOuter diameter: approx. 12.7cm/5inchPackage includes1 x Tool circle drawingNote: Please allow 0-1cm error due to manual measurement. please 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. Fast and free delivery. Fast and free deliveryFast and free deliveryFast and free delivery