Durable Chrome-plated Zinc Alloy Rotating Chestpiece Features Two Inner Drum Seals Effectively Preventing Audio Leakage Includes: 5-in-1 Interchangeable Chest Piece Stethoscope With Soft Vinyl Eartips Three Bell Sizes Two Spare Diaphragm Sizes Two Spare Eartip Sets In Two Styles Chestpiece Key For Easy Diaphragm Replacement And Accessory Pouch Latex-free Thick-walled Vinyl Tubing Tube Length: 22 ; Total Length: 30 Lifetime Limited Warranty