It is easy to spot an interior that has not been cared for with leather conditioner. The changes in humidity and tempuratures make the leather dry out, and you will see small lines develope which eventually split and crack. I suggest conditioning a min of 2-3 times a year to ensure long life. A quality horse hair brush is perfect for cleaing with leather cleaner (It can be purchased at any janitorial supply store) or I can get you one if you can't find it. Then follow up with conditioner. I sell both items on my web site. Gary