Features:1.Premium material: Made of high quality reusable plastic material, durable and long lasting.2.It is compatible with chalk and markernot include, which will provide convenience to draw, perfect for office and school.3.It comes with sucker design, which can fix firmly the center of circle.4.Lightweight design, reduce your fatigue after the long time of holding.5.100 Satisfaction: If you have any question, please feel free to contact us.We will try out best to help you. Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effectDescription:Material:Reusable PlasticSize:as shown Package List:1x Large Compass