This package contains one pair of adult defibrillation pads for use with the Lifeline AED and are for adult use only (8 years or older). The pads should be stored connected to the AED. Extra pads can be stored in the available carrying case (sold separately). The pads have a two-year shelf life. Global Product Type: Defibrillator Pads; Size (W x L): N/A; Defibrillator Pad Type: Adult; Weight: N/A.