Abstract: A bottle includes a neck and an opening at an end of said neck. A closure member closing the opening is provided with locking means that secure the closure member to a rim of the opening. The locking means include a collar surrounding a neck portion of the neck and locking-levers that are hingedly connected to the collar. The closure member includes outwardly extending lugs that register with the locking-levers. The locking-levers include link members that releasable engage the lugs at a top surface thereof. The locking-levers are retractable to a closed position in which the link members clamp the closure member to the rim of the opening.