Quick Overview Practical to the touch and eyes, the adult manikin by Prestan offers a professional unit unlike anyone else on the market. The unit comes in single units or for multipacks for training purposes. Prestan manikins are designed uniquely shaped like a clamshell that comes with an easy to insert face shield and lung bad. Unit is available with, 50 Lung Bags, 4 CPR monitors with 2 AA batteries, there is an instruction sheet and the carrying bag for a single manikin (26" x 13" X 23").