Supra318PLUS Ace Air Master Replacement Air Cell (1 piece) 1 piece

We promise the highest level of comfort. All cells are made of polyurethane, providing a comfortable feel and reducing stress on the contact surfaces. The three head cells are pressure-fixed to reduce seasickness, and the other cells come in sets of three, and alternate between inflating and deflating in the order right, left, and center. The eight central cells are of the type that emits minute air to prevent moisture. The CPR plug allows air to be removed in about 20 seconds, allowing for quick cardiopulmonary resuscitation. Equipped with an alarm function to notify of hose disconnection and insufficient internal pressure. Material: Cell/PU (polyurethane) Replacement air cell (1 piece)