200 Cardboard Sheets / Chipboard Pads. These are thin sheets. Used mainly for crafts but using 4 or more together can be used for Lightweight - weigh.
Chipboard Sheets, Lightweight, Chipboard 8.5 x 11.022 - Thin
100 Chipboard Sheets 8.5 x 11 inch - 30pt (point
8.5 x 11 Inches Chipboard Medium 30 Pt (Point) Weight
Mega Format Cardboard Sheets, Chipboard Sheets, Chip
Chipboard Cardboard Sheets - Medium Weight - 50 Per
8.5 x 11 Inches Chipboard Medium 30 Pt (Point) Weight
InMotion Gear
8.5 x 11 Chipboard Sheets Pads Cardboard for Photos Backing
Chipboard Sheets 8.5 x 11 - 100 Sheets of 22 Point