Standard Screen Printing Units include adjustable height back bar mounted with wing nuts; complete 3-1/2" high quality squeegee; 1/4" hard board base; 1-1/8" frame lumber with 12XX multifilament, 110 or 160 monofilament polyester fabric stretched by rope method with no slip seal; glued corners with metal corrugated fasteners and wood sidekick; package of three tempered stainless steel registration guides.