Using these chair sashes is a breeze. Just wrap them around the chairs and secure them with the buckle. They fit chairs with a width of 14 - 19 inches, so make sure your chairs are within this range. When it comes to care, hand wash them with mild soap and then hang them to dry. Avoid using harsh chemicals as they can damage the fabric. The buckle is plastic and moves sideways, but it can't be removed, so don't try to force it. These sashes are great for a variety of events like weddings, parties, and graduations. Have fun decorating with them!