13" long Replacement straw bale. Straw is an excellent bedding for the kitties for all seasons and acts like an insulator in the shelter as well as absorbs any unwanted moisture off the kitty's body without getting wet and soggy. It will Keep them warm in winter and cool in summer. Just make sure you are using straw and not hay! They are not the same when we compare as bedding. Hay absorbs moisture, while straw repels it. Approximately 2 uses out of one bale, depending on shelter size.
