Non-toxic, smooth, dirt resistant. Soft flanges offer a better fit in the ear canal with a tighter seal and better attenuation for decreasing noise. Easy clean up with water allows for weeks and months of continuous use. Distinctive design allows one size to fit a wider range of ear canals. Size: 14mm (external), internal size fits earbuds with diameter from 4-7mm. *Replacement earbuds only, no headphones included. Different colors and sizes also available - visit our storefront for more! This is high quality product distributed only by Accessory Department. Accessory Department is the owner of all intellectual property rights in this listing and in the material published on it. Xcessor (TM) is trademark of Accessory Department. It is protected by corresponding copyright laws and treaties. All rights are reserved.