A screen suitable for vibration, comprising: a flexible molded polyurethane body having substantially parallel side edge portions (14, 16) at opposite ends of the body configured for mounting the screen in a vibratory screening machine, a lower edge portion substantially perpendicular to the side edge portions (14, 16), an upper edge portion substantially perpendicular to the side edge portions (14, 16) and opposite the lower edge portion, an upper surface, a lower surface, first and second members forming screening openings, the first members extending between the side edge portions (14, 16) and the second members extending between the lower edge portion and the upper edge portion, third and fourth members having a thickness greater than the first and second members, the third members substantially parallel and extending transversely between the side edge portions (14,16) and having multiple first members there between, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members there between characterized in that the first reinforcement members are molded integrally with the third and fourth members. wherein the screen further comprises, fifth and sixth members, the fifth members substantially parallel and extending transversely between the side edge portions (14, 16) and the sixth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion, at least one of the fifth and sixth members having a thickness greater than at least one of the third and fourth members, at least one of the fifth and sixth members have a portion extending downwardly away from the lower surface of the body, the sixth members have a portion extending upwardly away from the upper surface of the body, and a second reinforcement member molded integrally with the fifth and sixth members. a flexible molded polyurethane body having substantially parallel side edge portions (14, 16) at opposite ends of the body configured for mounting the screen in a vibratory screening machine, a lower edge portion substantially perpendicular to the side edge portions (14, 16), an upper edge portion substantially perpendicular to the side edge portions (14, 16) and opposite the lower edge portion, an upper surface, a lower surface, first and second members forming screening openings, the first members extending between the side edge portions (14, 16) and the second members extending between the lower edge portion and the upper edge portion, third and fourth members having a thickness greater than the first and second members, the third members substantially parallel and extending transversely between the side edge portions (14,16) and having multiple first members there between, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members there between characterized in that the first reinforcement members are molded integrally with the third and fourth members. wherein the screen further comprises, fifth and sixth members, the fifth members substantially parallel and extending transversely between the side edge portions (14, 16) and the sixth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion, at least one of the fifth and sixth members having a thickness greater than at least one of the third and fourth members, at least one of the fifth and sixth members have a portion extending downwardly away from the lower surface of the body, the sixth members have a portion extending upwardly away from the upper surface of the body, and the fifth members substantially parallel and extending transversely between the side edge portions (14, 16) and the sixth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion, at least one of the fifth and sixth members having a thickness greater than at least one of the third and fourth members, at least one of the fifth and sixth members have a portion extending downwardly away from the lower surface of the body, the sixth members have a portion extending upwardly away from the upper surface of the body, and a second reinforcement member molded integrally with the fifth and sixth members.