Ucanpack 100 Pack Green Corrugated Cardboard Sheet 21x20", Made in USA-Dual Color Corrugated Sheets For DIY Crafts Supplies, Inserts, Shipping, Dividers, Mailing, School Projects

21 x 20" 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