The Prevail Premium 30 x 36 Underpad is for heavy absorbency. It will protect beds. chairs and other furniture from accidental spills for an additional layer of protection. The super absorbent layer will quickly pull and lock up liquid. It has a moisture proof barrier for effective protection. It has an extra strong construction that resists stretching and tearing even when wet. It is 30 x 36 inches large. Available in 10 per pack or 40 per case.