8 1/2 x 11, 11 x 14, 11 x 17 or 14 x 22 Floor Standing Sign Holder
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Amazon.com : IN WHICH BAY Poster Office Sign Stands Holder, Adjustable Floor Sign Stand for Shopping Guide Billboard Meeting Poster Signs,Vertical and Horizontal View Display (Silver, 8.5x11in(2Pack)) : Office Products
Amazon.com : Adjustable Heavy Duty Pedestal Sign Holder Floor Stand, Sign Stand Poster Stand, Standing Floor, 11 x 17 inch, Vertical & Horizontal View, Outdoor Indoor Standing Display Sign Holders Aluminum Black :
Amazon.com: Vicenpal 3.5 x 2.5 Inches Acrylic Sign Holder Slant Back Sign Holders Clear Picture Frame Acrylic Stands L Shaped Display Stand for Office, Store, Restaurant, Horizontal (20 Pcs) : Office Products