Protection PlusÂ® Disposable Underpads:Non-woven facing is soft against skin.Absorbent material helps contain fluid, and the polypropylene backing helps keep underpad in place. Wide variety of sizes and weights to meet every budget and need. Available retail packaged, MSC281248. Standard weight, moderate absorbency. 23'' x 36'' (58cm x 91cm). 150/cs, 25/bg.