Hygloss Mirror Board Circles have a faux mirror surface, and are made from strong 12 pt. card stock. The circles are acid & lignin free, and are excellent for a variety of crafts. Availale in 3 different sizes, with 25 circles to a pack; choose the pack that works for you! Silver Mirror Board Circles have a faux mirror surface on one side, with white on the reverse side. They are made from super-shiny, superior quality 12 pt. card stock.  Mirror board paper is both sturdy and flexible, an ideal material for all sorts of projects and displays. Each pack comes with 25 silver circles, so you can be sure you have enough for a whole class or for your personal crafting needs. Our unique mirror board is acid and lignin free, so it will not yellow or fade with time. This feature makes the mirror board circles ideal for scrapbooks and other long term projects and keepsakes.