Specifications:- Product Type: Spare Parts Kit. Compatibility: Designed for use with the 3M Littmann Classic III and Cardiology IV stethoscopes. Diaphragm Diameter: Adult side diaphragm is approximately 4.3-4.4 cm, while the small/pediatric side diaphragm is approximately 3.3 cm. Contents: Includes adult diaphragm, pediatric diaphragm, non-chill bell sleeve, and a pair of soft-sealing eartips. Color: The image shows a bronze/gold color, but these parts are also available in other colors like black and grey.  Key Features and Highlights:- Tunable Diaphragm Technology: An innovation by 3M, this allows clinicians to hear both low- and high-frequency sounds by simply adjusting the pressure on the chestpiece. Single-piece Diaphragm: The diaphragm is a single, smooth piece, making it easy to attach and clean, as there are no crevices for debris to get trapped in. Dual-Sided Chestpiece: The Classic III has tunable diaphragms on both the adult and pediatric sides. Open Bell Feature: The pediatric side can be converted into a traditional open bell by replacing the diaphragm with the included non-chill bell sleeve. Snap-Tight Eartips: The kit includes snap-tight, soft-sealing eartips that provide a comfortable fit and excellent acoustic seal.  Monitor and access a wide range of patients. Better Sound, Better Learning. The compact 3M Littmann Classic III Stethoscope is perfect for monitoring and assessing children or adults in non-critical settings. The versatile stethoscope offers high acoustic sensitivity for exceptional performance, hours of comfortable use and comes in a variety of vibrant colours to reflect your personal style.   Use in non-critical settings Detect normal and abnormal sounds and rhythms Fun and vibrant; match the colour and finish to your personality   Here’s what makes the Classic III stethoscope stand out: Tunable diaphragm Tunable diaphragms on both the adult and pediatric sides of the chestpiece. The pediatric side is useful for small or thin patients, around bandages, and for carotid assessment. Pediatric side Pediatric side converts to an open bell. Just remove the single-piece diaphragm and replace it with a non-chill rim Single-piece diaphragm Single-piece diaphragm is easy to attach and easy to clean because the surface is smooth without crevices. Open bell Open bell stays clear of dirt and debris by covering it with the small diaphragm. Next-generation tubing Not made with natural rubber latex or phthalate plasticizers in the tubing or any other component. 5 year Promise Turn to your trusted instrument for years to come with a five-year promise. 3M Littmann Stethoscopes The personal diagnostic tool you depend on day after day. Littmann Stethoscopes Acoustic Performance Levels Level 6 Ideal for taking blood pressure readings and making limited patient assessments. Levels 7-8 Hard-working, dependable, clinical tools for physical assessment and monitoring of your patients, one long shift after another. Levels 9-10 Provides outstanding acoustic sensitivity to help you perform detailed diagnostic auscultation. Useful in challenging and critical care environments