Can’t quite figure this one out, but it appears to be another system for chilling wine.

Made of high grade stainless steel - the same as used in wine tanks, a chilled Winesceptre is inserted into a bottle of wine to keep the pre-chilled wine at a perfect serving temperature over an extended period of time. The design allows you to continue pouring wine without removing Winesceptre from the bottle.

Winesceptre Keeps Wine at Ideal Drinking Temperatures [Daily Olive]