Our Patented Rear Grease Management System makes it easy to manage grease and food debris and our liners make disposal mess-free. Place the liner in the grease cup before you start cooking and, once you are done, push the excess oil and scraps of food to the rear grease opening at the back of the griddle. The liner will catch all the mess easily. Once the liner is full, simply discard and replace with a fresh one to make cleanup a breeze. Includes 10 Liners.