25 Sheets Chipboard 46pt (point) 12 X 18 Inches Medium Weight Large Size .046 Caliper Thickness Cardboard Craft|Packaging Brown Kraft Paper Board Heavy Weight Chipboard 46pt (point) or .046" (.046 inch) thickness = 1.17mm Backing for notepads, photos, and prints Make your own albums, frames, displays, covers, backs, boxes and containers Protect your shipments and storage of keepsakes and papers 100% recycled clean fibers