The popular Collar series is now complemented by this sophisticated vacuum bottle cap. Perfect for storing a opened bottle of wine for a few days. Pumps the air out of the bottle with the built-in pump function. The wine cannot oxidize and therefore lasts longer. The Collar bar series also consists of a cocktail shaker and an ice bucket. The entire Collar collection includes a teapot, an espresso machine, a coffee grinder, a tea infuser, a milk jug, a sugar bowl, a water bottle and a thermos bottle.