1. EVA corrugate tubing (Inner: 15mmID, Outer: 25mmID). Different lengths of tubes are available. Blue color is for Adult, magenta color is for Child
2. EVA Corrugated(40cm) or PP Collapsible(53cm) is optional.
3. Breathing Bag is optional.
i. Latex or Latex-free
ii. Size: 3L, 2L, 1L and 0.5L