Stretchable headphone covers: each ear cushion has a diameter of 12 cm/ 4.72 inches, with good elasticity, which can fit large earphones around 10-12 cm/ 3.93 at 4.72 inches. Hygienic Earpad Cover: Made of non-woven fabric, comfortable to wear, protects your earphone cushions from dirt, oils while protecting your ears from dust, skin-friendly. Disposable earbud covers: The earmuff cover is lightweight, with an elastic strap for easy wearing, anytime wearing, and direct throw after take-off, clean and hygienic. Applicable occasions: disposable helmet covers are ideal for gyms, offices, bars, libraries, call centers, shows, hotel and more, provide nice protection for users of earphones and headsets. Sufficient Quantity: Pack comes with 50 pairs (100 pieces) of black color disposable earmuffs, the quantity is enough for you to store them at once for multiple uses.