Laerdal-110502 – RA Inner Part of Chest (1/EA) is a genuine Laerdal replacement component designed for AED Resusci Anne (RA) manikins. This inner chest part replicates the internal chest structure to provide realistic resistance and feedback during CPR compressions. It ensures consistent performance, durability, and accuracy in every training session—making it essential for maintaining your manikin’s optimal functionality and lifelike training experience.