Product description: ✔The earphone sleeve is made of environmentally friendly non-woven material, breathable, soft, lightweight, non-allergic when on the ear. ✔These non-woven earmuffs have excellent breathability and will not affect your sound quality. ✔Discard directly after take-off, clean and hygienic, without sharing germs, bacteria, head lice between many people. ✔These helmet sets are suitable for gyms, offices, computer laboratories, libraries, schools, hospitals, doctors' offices, hotels, etc. Specification: Material: non-woven fabric. Size: 12.3 cm/4.8 inches. Quantity: 100 pieces Colour: black. Package includes: 100 x Earphones Covers Notes: 1. Due to the light and screen setting difference, the item's colour may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement. 3.If you have any questions or have problems with the products you received, please contact us in time.