Use Plastic Internal Liner Bags in order to protect your material handling cart from its contents or to make the unloading process easier. These plastic bags line the inside of the material handling cart and contain the contents of the cart. In order to keep the inside of your material handling cart clean, use the plastic liner bags inside the cart before placing contents inside. When unloading the cart, simply lift the liner bag with the contents inside. This will allow for a clean cart as well as a more efficient unloading process.