Staedtler Metric Combo Circles Template is perfect for use when you're doing technical drawing as it'll help you to create perfect circles | The template incorporates an assortment of different sizes and a scale that helps you to find the right one for your drawing | Sturdy plastic construction | Ideal for use with a thin pencil lead so you can achieve accurate results | Create 48 different isometric ellipses with diameters between 2 and 50mm | Transparent green design so you'll be able to see through to your paper below | The ruler scales and cut-out identifications are printed in black so they'll be easy to read | Matte finish to reduce glare while you're working