A bottle (10) comprising a neck (12) and an opening (13) at an end of said neck. A closure member (20) closing said opening is provided with locking means (30) that secure said closure member to a rim (14) of said opening. The locking means comprise a collar (30) surrounding a neck portion of said neck and locking-levers (351,352) that are hingedly connected to said collar. The closure member (20) comprises outwardly extending lugs (25) that register with said locking-levers. The locking-levers comprise link members (352) that releasable engage said lugs at a top surface thereof. The locking-levers (351,352) are retractable to a closed position in which said link members (352) clamp said closure member (20) to the rim of said opening.