Readi-Board 20" x 30" x 3/16" Foam Board, 25 Count, White : Amazon.in: Office Products
Mark Darrah on X: "The tiles are made of Reddiboard which is a foam core from DollarTree where the paper peels off really easily https://t.co/BoQflvaxeW" / X
Foam Board 48" x 96-3/16" - White
Readi-Board White Foam Boards, 20x30 in.
Amazon.com : Foam Board 20 x 30 x 3/16" (5mm) - 12 Pack - White Poster Board, Acid Free, Double Sided, Rigid, Sign Board Foamboard for Mounting, Crafts, Paintings Prints, Art, Display,