A PROFESSIONAL'S CHOICE - Alvin has been the professional's choice for drafting tools and drawing supplies for over half a century. We are known for our wide selection of high quality tools at a fair price. TIME-SAVING TOOL - The template makes it easy to create a reproduce shapes. There are 42 circles in different sizes that are very useful for many of your drawing and drafting projects. MILLED, NOT PRESSED - All templates are milled, not punched or pressed to ensure precise and accurate drawings. FLEXIBLE AND DURABLE PLASTIC - Made from non-glare, odor-free, translucent plastic that is durable and flexible. It does not break when bent. DIFFERENT TEMPLATE DESIGNS FOR YOUR NEEDS - Alvin carries over one hundred unique template designs in a variety of categories. Circles, Ellipses, Electrical, Mechanical, Architectural, Lettering and General Purpose. Collect them all and trade them with your friends.