Scratch and Tear Resistant Thick and strong liners that will resist even the most playful cats and will not rip when it's time to clean up. Strong Polymer Formula Our secret formula provides the toughness of high density polymers and the rip and tear resistance properties of low density polymers setting us apart from the rest of the market. Easy to use Drawstrings Enjoy a smooth cleanup with our handy and strong drawstrings that won't snap when it's time to dispose Quick and Hygienic Keep your hands clean and your tray fresh with our leakproof bags that prevent urine and unpleasant odours from sticking to your litter tray.