Features: High-quality material,our geometric drawing templates are made of sturdy-plastic, which is durable, lightweight, non-toxic, odorless and harmless. it is not easy to bent-or split. the smooth surfaces makes it pleasant to-touch. Practical and portable,our drafting templates come with mulit-shapes geometric drawings templates which is convenient for daily usages and carry. it is perfect for drawing different sizes of circle, ellipse, square and other patterns you want. Wide application,our templates can be used at architecture,mathematics,network-technique,fractional measurement, art design or school learning. Wonderful gift, it is also a great gift for your friend or family. Rulers measurement,our drafting stencil adopt metric system, using centimeter as scale unit. Specifications: Material:Plastic Color:Blue,Red,Green,Yellow Package Includes: 1 Set Geometric Drawing Templates note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.