Dickie Safety DSB100 Series Sign Stand - RubberDickie Safety DSB100 Series Sign Stand Rubber The DSB100 Stacker sign stand displays both 36and 48 roll up signs. Made of rubber from recycled tires, the DSB100 has a small foot print, compact storage, and several different models from which to choose. DSB100 features a Latch style pocket sign holder for standard roll up signs, the DSB100 W comes with the Screwlock universal roll up sign holder, the DSB100 P is has a Post and Tube style sign holder.