5" x 7" Black Cardstock, 300 Pack Black Thick Paper Cardstock Blank Cards Stock for Invitations, Greeting Cards Making, Postcards, Photos, 250GSM Thick Paper Black 5inch x 7inch is up for auction in Arts, Crafts & Sewing. The current bid is $6.50, 59% below the $16.00 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.