1.100% silicone 2.Designed for nasal & gastric introduction for nutrition & aspiration of intestinal secretion. 3.Provided with full-length radio-opaque line for checking the tube placement. 4.Provision of four eye-holes for efficient aspiration. 5.Marked at 45, 55, 65, 75cm from the distal end. 6.Sterile, Non-toxic and Pyrogen free.