Soft Material: the MDF ear tips are made of updated soft silicone material, which can make you feel comfortable when you wear it and safe for people to use, So many colors to choose from based on your priority. Applications: these earplugs are just suitable for stethoscopes with metal parts, compatible for MDF and so on. through quality inspection, reliable material and light weight, can deliver sound well. Complete Set Of - Extend the lifespan of your stethoscope. these earbuds are soft and , comfortable for wearing, featured with self-stretch deformation, can reduce the vibration, isolate the interference from external noise, practical and helpful Thoughtful Present-For Doctors, Nurses, veterinarians Tip: please keep these small items away from children under 5 years old to avoid danger. Color:Black Material:pvc Package Contents: 24 Pairs * Stethoscope Ear Tips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.