The Smiths Medical 100/166/065 is a Tube Endotracheal with a size of 6.5mm. It is designed with a one-way valve for efficient and easy inflation and deflation of the cuff. The large pilot balloon clearly shows when the cuff is inflated. An intubation Depth Marker is located 3cm proximal to the cuff to assist in the accurate placement of the tip within the trachea. The large cuff diameter ensures an effective seal and reduces movement relative to the trachea during ventilation. This product is packaged in a box of 10.