Alliance Engineer Rolls are for use on all leading OEM large document laser printers. 92 bright white paper increases contrast for greater impact on final prints. 20 lb. paper with stiffness properties provide reliable insertion performance for laser imaging. Lint-free, acid-free sheet with archival quality. 2 rolls per carton, measuring 24" x 500 FT, 3" Core, Untaped. TST/Impreso, Inc. specializes in printing and converting engineering bond rolls. Established in 1976, we have developed our state-of-the-art Slitting and Rewinding facilities to serve your needs.....closer, faster and with more precise accuracy in every roll. National manufacturing with 4 regional converting plants. 205,000 square feet combined manufacturing space. 11 Regional Distribution Centers.