The PRESTAN CPR manikin is unlike any other on the market. These manikins are uniquely designed as a clamshell that accommodates an easy-to-insert face shield/lung bag. PRESTAN's revolutionary new CPR Rate Monitor allows for instant feedback to both student and instructor regarding the rate of chest compression. This allows each student to gauge their rate of compressions on their own as well as allowing the instructor to monitor several students quickly and easily. All PRESTAN products are latex-free.