CAP

To provide a cap that is enabled to change a pouring amount of contents and then can suppress a pouring member from unexpectedly moving to a closing position.SOLUTION: A cap comprises: a cap body 4 which is mounted on a mouth part 2a of a container 2; a pouring member 7 which is connected to the cap body 4 rotatably through a first hinge part 5; and an over-cap 9 which is connected to the pouring member 7 rotatably through a second hinge part 8. The pouring member 7 is provided with a lock member 102 which can move between a lock position where the lock member engages an engagement part 101 formed on the cap body 4 to restrict the opening operation of the pouring member 7 around the first hinge part 5 relative to the cap body 4 and an unlocking position where the lock member retracts from...