Twister 4-piece calendar set is modern organizational wall art. Each month is a separate piece, and each piece is a fresh new take on a retro design. Arrange these wall decals however fits your space best and enjoy the beauty and convenience of this dry-erase peel & stick WallPops calendar. Twister 4 Piece Calendar Sets contain 4 - 13-in x 13-in sheets and include a Dry-Erase pen. Twister 4 Piece Calendar Sets are repositionable and totally removable.