Superprint 2 440 Front lit exists to compete with and out perform most other 510grm grades in the market place. Its RIP Stop abilities exceed that of the 510s by having 3 times the polyester yarn within the product. This gives the benefit of still having a lighter weight banner but inherently stronger with a much smoother print surface. Tensile strength (1850/1350) is much higher than 510s. Truly a premium smooth quality product for it's price point against 510s.