JM4SL/AC - Injection Molded Acrylic Shoe Shelf w/ Sign Slot Crystal clear, high impact acrylic reduces loss due to damage and less susceptible to discoloration. Can also be used to display small, light to medium weight items such as: Electronics (phones, palm pilots and calculators); Beauty Supplies (cosmetics, fragrances) and General Merchandise (book and music accessories). Acrylic material provides extra clarity.