Amazon.com: 25 Chipboard Sheets – 11 x 17" Brown Kraft Cardboard – Medium Weight 30Pt (.030 Caliper Thickness) Paper Board | Great for Arts & Crafts, Packaging, Scrapbooking, Notepad Backing : Office Products
Graphic 45 Staples Embellishments Black 12x12 Chipboard Sheets 10 Pack
12" x 12" Chipboard Pads, 625/Carton (BSXP1212) | Staples