Are you looking for a professional and practical triangle ruler? , ! Our teaching tool must meet your needs. This teaching ruler is made of plastic material, and sturdy for use. Fine workmanship ensures practicality and durability. Features -Color:Khaki -Material:Wood -Size:53.50X27.00X1.50cm/21.03X10.61X0.59in -The construction of this teaching tool is sturdy and reliable, made of firm plastic for durability. -It enhances learning experience for students by providing a precise and accurate way to measure angles and draw shapes. -The clear scale markings on the teaching triangle ruler allow for precise measurements, ensuring accuracy in all drawings and calculations. -This math teaching tool is suitable for teachers on the go, as it is lightweight and easy to transport between classrooms. -With its versatility in drawing shapes and measuring angles, this teaching protractor is a must-have for any classroom. Package list: 4 x Protractor