Please purchase the amount you need at one time. The fabrics do not have a dye lot so they do change from bolt to bolt. If you purchase more at a later date they may not match. This listing is for one, made by me, Black Polka Dot valance pictured above. It measures apx. 42" wide by 13" long. This includes a 1 1/2" rod pocket and 1" top header. This valance uses a regular 1" white rod. You could also use a small round white rod. The fabric is 100% cotton, but is not drapery weight. The weight of the fabric is the same as a bed sheet. It can be washed on the gentle cycle and dried on low for ease of care. The rule of thumb is that you need 1 1/2 to 2 times your window opening. You many need more than one valance for your window. If you have any questions, please feel free to ask.