Alvin TD404 Circle Guide drafting stencil set contains 98 circles on 3 different drawing templates. Consists of Alvin TD435, TD445, TD495. Circles range in size from 1/32 to 3-1/2 inches in diameter. Template size is 8.5 x 11 x .030 green plastic. SET OF 3. Alvin circle templates are made in the USA.