This package contains one pair of child/infant defibrillation pads for use with the Lifeline AED and are for use on infants and children to the age of 8. These pads should be stored connected to the AED or in the available carrying case (sold separately). These pads are for use only with Defibtech defibrillators with software version 1.203 or later. The pads have a two-year shelf life. Global Product Type: Defibrillator Pads; Size (W x L): N/A; Defibrillator Pad Type: Child; Weight: N/A.