Toll-Free 888-331-7625 or 307-754-4681 | Shopping Cart | About Us - Company Info | Contact Us Page | Home Page Template, ovals, circles $8.95 The Gem-Temp, J-345 is a plastic template featuring marked millimeter sizes of ovals and circles used in designing cabochons. The plastic template allows you to see the complete slab for the best pattern for the cabochon. The oval patterns are sized from 10mm x 8mm up to 40mm x 30mm.  Circle patterns are sized from 7mm up to dollar size or 38mm. The template will greatly aid in correct sizing for placement in popular sizes of jewelry findings. A millimeter scale is also shown on the bottom of the template for measuring. Related Items Here are some products that may also be of interest to you: • Template, squares, rectangles, crosses