This lot includes 3 rolls of Sound Step XL PE foam underlayment, covering a total of 300 square feet. Designed for use under hardwood and laminate flooring, this underlayment provides cushioning, moisture protection, and sound reduction. Lowe's item #5201399, model #SSXLPE100BLSS. Condition is like new and in original box — a great value for a flooring project at a fraction of retail cost.