CPR Ezy Kit The CPREzy kit has been exhaustively tested by a number of well-known medical organizations throughout the world and has undergone a full clinical trial in St VincentÊs Hospital Melbourne Australia. * This clinical trial clearly proved that external heart massage using the CPREzy chest compression pad was up to 5 times more effective than using traditional manual CPR methods * Aids effective CPR chest compression * Guides the rate of chest compression with an audible tone * LED force indicator for consistent chest compression * Reduces the risk of chest injury * * Aids CPR training * Ensures full release of force between compressions * Automatic battery tester * Re-programmable audible tone rate * Assists with rescuer fatigue * Assists the correct angle of compression * Takes the guesswork out of CPR * Shipping Carton Size: 12 L x 10 W x 6 H