14 Sheets Brown Chipboard 100 Point Extra Thick 8.5 X 11 Inches Letter Size .100 Caliper XXX Heavy Cardboard as Thick as 25 Sheets of Regular Paper Extra Extra Extra Heavy Chipboard 100pt (point) .100 (.10 inch) = 2.54mm 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