CRESCENDO Live Earplugs Music 20 Ear tips are likely size M, with two of each. A silver storage case is also included. Since the size is unknown, I'm offering them at a low price. Used only once for a short time and disinfected with alcohol. Ear protectors that protect everyone who loves music from the risk of hearing loss and acoustic disorders. They reduce sound to a safe listening level while maintaining the natural sound of all frequencies. The filters ensure ear ventilation for optimal comfort. They are also washable and hygienic. Comes with a special case to prevent loss. Made in the Netherlands.