The Instant Marinater is a unique tool that marinates and tenderizes meat, fish, chicken and vegetables in just minutes. It works by creating a vacuum which opens up the pores and fibers of the meat allowing for a deep and instant marinate! Just use the vacuum pump to pump out the air and pull in the juices. This process also tenderizes the food. Free booklet “Taming the Flame” included. 9-1/2" x 9-1/2" and 3-1/4" deep