Reclosable stopper revealing a first opening

A reclosable stopper (11) revealing a first opening, positioned on a threaded mouth (12) of a container (10), comprising:

• a base body, from which a pouring element (17) extends upwards;
• a protection and closing cap (19) produced integrally in a single piece with the base body and connected to said base body by a connecting bridge (18) shaped as a strip and acting as a hinge,
• wherein said base body comprises a guarantee ring (14) connected by frangible bridges (15) to a collar (16), the collar having an interior provided with a threading (13) complementary to a threading of the threaded mouth (12), and
• wherein the protection and closing cap (19) is firmly positioned on the base body for closure,
• further comprising a group provided between said base body having said pouring element (17), and said protection and closing cap (19), the group including,
• the first opening defined in the reclosable stopper, the first opening having an edge,
• a flap disposed within the first opening,
• a first and a second rotating bridge connecting opposite side edges of the flap with the edge of the opening, the first and the second rotating bridge operating as rotation pins to enable a rotation of the flap within the opening,
• frangible bridges (38) connecting an upper portion of said flap to the edge of the first opening, and
• a tooth (22, 23) which extends from said base body and is inserted in a window (24) defined in the flap (25).