Ucanpack Made In USA-21x21" Corrugated Sheets 100 Pcs Pack, Green Bulk Flat Square Cardboard Inserts, Mailers & Shipping Layers Pad, Dividers, School Carft Supplies

21 x 21" B Flute apx. 1/8" thickness corrugated cardboard sheets Machine finished surface ensures high color fidelity & outstanding finish Use as craft supplies, display inserts or to separate items