Description: 【Innovative Design】: This digital compass features a linkage gauge design that allows for easy adjustment of the leg spacing and displays data. No need for a separate ruler, making it perfect for both learning and exams. 【Convenient and Safe】: The compass is designed with a push button storage feature, making it portable and safe. It prevents accidental injuries from the sharp the compass. 【Smooth Drawing】: Equipped with an pencil lead, this compass ensures smooth and uninterrupted circle drawing, enhancing your drawing experience. 【Wide Range】: This compass is capable of drawing circles with a of up to 130mm, making it versatile for various drawing needs. 【High Quality Material】: Made of durable ABS plastic, this compass is designed to withstand long term use. Size Chart: 1cmx1.3cmx16.5cm/0.39inchx0.51inchx6.50inch Package Includes: 1 Compass Note: Please allow slightly errors due to manual measurement and different monitors.