The Innosonian America-S17008 Spring is an essential OEM replacement component engineered specifically for the internal chest compression system of the Brayden Baby CPR training manikin. Designed to deliver realistic physical recoil during pediatric Basic Life Support (PBLS) chest compressions, this high-tensile steel spring accurately replicates the chest compliance and resistance of an infant patient. By restoring proper spring tension, this component ensures consistent compression depth feedback, smooth recoil action, and reliable long-term durability for high-volume CPR training courses and simulation labs.