Pickle lifter

A pickle lifter or lifting tray is a device for elevating food from a container to make it more accessible for extraction. Typically, it acts as a strainer to assist in raising pickles and cornichons from a brine solution towards the top of a jar or container. Ones that are used in commercial products are often made of plastic, while some are made of metal. 
The Tupperware corporation makes a product under the trademark Pick-A-Deli that contains a built-in pickle lifter in the form of a lift-up strainer.