Ketel One Botanical Grapefruit & Rose is another flavor variation of the Ketel One Botanical series. It offers a blend of grapefruit and rose flavors infused into the smooth Ketel One vodka base.

The size you mentioned, 4x355 ml, typically refers to a pack of four bottles, each containing 355 ml (or 12 ounces) of Ketel One Botanical Grapefruit & Rose. This size is commonly available for convenience and variety.