Package Count: 25. Tena underpads for bed or chair protection are designed to cover mattresses in order to absorb leakages, reduce odors and maintain dryness. They consist of a polyethylene layer combined with sealed edges to ensure leakage protection. The highly absorbent material is evenly distributed throughout the core.Tena underpads for bed or chair protection are designed to cover mattresses in order to absorb leakages, reduce odors and maintain dryness They consist of a polyethylene layer combined with sealed edges to ensure leakage protection The highly absorbent material is evenly distributed throughout the core