Abstract: A cap for containers, comprising a cylindrical body comprising a cylindrical skirt and a rib on the inner face thereof, where the cylindrical skirt and the rib are sized for contacting the inner face of the neck of the container and creating at least two sealing areas.

Abstract: Closure device comprising a base (100) and a lid (200) articulated by a hinge (205) comprising at least one opening indicator (207) allowing the user to know that a container has been opened at least once. Prior to the first opening, the opening indicator (207) is attached to the lid (200) by at least one separable connector (208), said separable connector (208) being broken on the opening of the container. The base (100) further comprises at least one housing (111) that receives the opening indicator (207) after its separation and shows it to the user through at least one window (112).

Abstract: A cap (1) for containers, which comprises a cylindrical body formed by the articulated joint between two superimposed parts, a lower part (2) having gripping means for retention thereof on the neck (20) of the container, and an upper part (3) having an upper base (5) joined to a perimeter wall (7), wherein said perimeter wall (7) comprises a visor (9) for enabling the opening of the cap (1), wherein said visor (9) comprises a flap (10) disposed transversely thereto and in correspondence to a complementary cut-out (4) provided on the upper edge of the lower part (2), wherein said flap (10) comprises, on an inner surface, a cord (11) disposed transversely to the axial axis of the cap (1) for executing the grip of the upper part (3) to the neck (20) of the container.