Our nappy fillings fit in all nappy bins. Changing bags are made of robust material that is scratch-resistant, tear-resistant and waterproof. Odour control is the main concern. Our improved 7-layer filling features odour barrier technology that keeps bacteria and odours in dirty litter to keep your home fresh. Each changing bag is 4.5 m long and can last up to eight weeks for your beautiful baby. It is your little helper that helps lock in odours and makes cleaning boxes a breeze. Allows you to breathe easily around the litter box. To use the Trash Genie refill in a bin, simply pull a little of the film, slide it into the middle of the box and tie a knot at the bottom. Then open the barrel lid and funnel, place the ink cartridge on top and press the refill down.