Philips HeartStart Adult Training Pads III are designed to be used with the Philips HeartStart Trainer 3 or the Philips HeartStart FR3 AED with Training Pack. These Training Electrode Pads use a low tack adhesive which makes them reusable so they're economical to use for multiple training sessions. They're also perfect for use on almost any CPR manikin. Philips HeartStart Replacement Training Pads III (FR3 AED & AED Trainer 3)