Vivonex® Plus Elemental Oral Supplement Tube Feeding Formula, 2.8 ounce Packet, 1 Each Conductive Gel and Cream Black 27 * The ultimate 14283 Black 27 * The ultimate acoustical stethoscope * Tunable diaphragm conveniently alternates between low and high frequency sounds without the need to turn over the chestpiece * Handcrafted sold stainless steel chestpiece * 2 in 1 tube design eliminates tube rubbing noise * Portable convenience of a single sided chestpiece * Excellent acoustic seal and comfortable fit with patented Littmann Snap Tight soft sealing eartips * Comfortably angled anatomically correct headset * Patient friendly nonchill rim and diaphragm Knock Down * Easily assembles without tools * 3 Non skid rust resistant swivel casters (2 rear locking) * Anodized aluminum frame * Back removes for easy cleaning (tool free) * Comes with removable 12 qt 100% free amino acids for severely compromised gastrointestinal tracts Suitable for these diets: Lactose free