3/4 inch Black Replacement Foam Covers, Ear Covers for iPod, iPhone, iTouch, iPad and other standard headphones and headsets. Diameter of foam cover: 3/4 Inches (19mm) Easily fits any standard earbud up to 2 inches diameter. Top Quality Foam, Durable, Soft & Streatchable. Color: Black Each set includes 4 foam covers (2 pairs).