Earthchoice Britewhite 8-1/2-x-11 (Index) Cardstock Paper 250-pk - 162 GSM (90lb Index) PaperPapers Letter size Econo Card Stock/Index Paper - Business, Card Making, Designers, Professional and DIY Britewhite 8-1/2-x-11 Virgin Fiber 162 GSM (90lb Index)