Fits slatwall or gridwall. Universal "Full View" Acrylic Sign Holder. The small horizontal acrylic sign holder measures 5 1/2"W x 3 1/2"H. Display your sign on slatwall or gridwall using this small acrylic sign holder. The acrylic gridwall sign holder hooks on to any horizontal grid or slatgrid panel wire. The acrylic slatwall sign holder hooks onto the horizontal slatwall groove. Palay Display stocks a wide variety of slatwall sign holders and gridwall sign holders. In stock. Note: Sale price limited to quantity on hand.