I absolutely LOVE this stethoscope! This brand is one of the best I've used yet. The silicone(latex free) is soft yet flexible, it has extra bells and diaphragm which are great for teaching. It has a pediatric sized bell and diaphragm as well as adult. It is 30in in length which is perfect for me. It also comes with a pouch that holds the additional ratios and bells and diaphragm which is great. Highly recommend this stethoscope.