[Customized comcompatible for t]: Our ear -mounted headphones replaced sea cotton sleeves made of high -density sponge, which can ensure closely fitting various ear size. Use fashionable black to provide a comcompatible for table and personalized listening experience. [Universal fit]: These foam sets have a variety of sizes 3.5 cm in diameter, 4.5 cm, 5 cm, 5.5 cm, 6 cm, which can be compatible with various ear -hanging headphones to ensure perfectly fit your specific models perfectly Essence [Excellent noise isolation]: These replacement of sea cotton sleeves are not only comcompatible for table, but also effectively block wind noise and background interference, allowing you to enjoy music or call quietly without any interference. [Easy to install and clean]: Use these cotton sleeves to make installations easier. They can easily install and remove without leaving any residues. [Environmental Protection Materials]: These headphone jackets are made of clean and environmentally friendly high -density sponge, which is safe compatible for you and the environment. They have low allergies and are more healthy alternatives of traditional headphones. Material: High -density sponge Colour: Black Size: diameter 3.5cm, 4.5cm, 5cm, 5.5cm, 6cm Applicable headphones diameter: as shown in the figure Applicable products: Ear -mounted earphones with corresponding size Features: windproof sound, prevent mixed color, clean and environmentally friendly Products include: 10/20/30/40/50*A ear -hanging headset replace the sea cotton sleeve Notice: Because the product is elastic sponge, the actual size will be about 1-3mm smaller, and the standard size can be reached after stretching.