This resuscitator is extremely versitile and reliable in it's design. With its textured grip, it ensures non-slip when used with a patient, and glued components that allow for a stronger structure. The face mask itself has an adjustable air cushion for patient comfort, and the product is latex-free. Single Use. Adult 1600ml Size 5 Mask / Child. 300ml Size 0 /Child 550ml Size 1 & 2 Mask