K-I-N 7490 stencil with different radii, smoky

The template is made of smoky transparent polystyrene. Designed for use with sharpened pencil, mechanical pencil, throwing pencil or technical handles. Used to draw and draw radius of various sizes and small circles. It contains circles with a diameter of 0.8-2.5 mm and radii of 1-40 mm. The size of circles and radii is determined using black stencil printing, which is resistant to wear and gap with normal use. The template is designed for drawing and technical drawing in schools and offices.