Description: - 【Teaching 】: Circles es for geometry drawing and math lessons, suitable for home, office, classroom, teaching aids, drawing and drafting. - 【Demonstration】: The math teaching es can hold markers and chalk easily suitable for whiteboards or chalkboards to draw. - 【Precision Drawing】: The teaching with adjustable screw attachment, through which larger diameter drawing tools can be secured. - 【With Suction Pad】: The drawing with suction pad within the joint helps to lock the dividers in place to ensure accuracy while drawing. - 【Application】: Demonstration suitable for blackboards and whiteboards, it is an essential tool for architects, engineers, artists, designers, teachers, etc.Specification: - Material: PPSize Chart:Length: 46cm/18.11inchPackage Includes:1 TeachingNote:Please allow slightly errors due to manual measurement and different monitors.