These bin liners are made of extra thick material and offer exceptional resistance to punctures and tears. Measuring 28.5 × 11.8 inches, they are ideal for use in the Mercury Series litter box, although the dimensions may seem unusual at first, they are precisely designed to ensure optimal fit and function. Each roll contains 20 heavy duty bags. Thanks to the double drawstring, the bags are easy to close and transport, shortening cleaning time and increasing comfort. In addition, the breathable, odourless material ensures that unpleasant odours are effectively contained, thus supporting a fresh and clean environment in your home.