Plexus Pacific manufactures the TRUPAK® line of quality control instruments for the graphic arts industry. TRUPAK® Blanket Packing Gauges are the industry standard for pressroom QC. Our MikeEZ thickness gauge measures sheet goods fast and accurately. The TRU>TEST Durometer measures Shore "A" hardness of soft materials. From measuring the hardness of your race car tires to printing press rollers, the TRU>TEST Durometer is a valuable QA tool..