Photo 1 of ***MISSING PIECES***Golden State Art, 50 Pack 16x20 One-Side White Corrugated Cardboard Sheets, Flat Cardboard Inserts Layer Pads for Mailing, Packaging or Art Crafts Photo Backing (1/8" Thick***MISSING PIECES***)

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Photo 1 of ***MISSING PIECES***Golden State Art, 50 Pack 16x20 One-Side White Corrugated Cardboard Sheets, Flat Cardboard Inserts Layer Pads for Mailing, Packaging or Art Crafts Photo Backing (1/8" Thick***MISSING PIECES***)Photo 2 of ***MISSING PIECES***Golden State Art, 50 Pack 16x20 One-Side White Corrugated Cardboard Sheets, Flat Cardboard Inserts Layer Pads for Mailing, Packaging or Art Crafts Photo Backing (1/8" Thick***MISSING PIECES***)