Specifications:These ear plugs are made of high quality memory foam.Soft and comfortable replacement ear tips for earphones.Easy to replace your old or dirty ear pads.Item Name: Ear TipsMaterial: Polyurethane Foam, Thermoplastic Elastomer (No Latex)Quantity: 2Pcs/SetCompatible for: In-Ear Type EarphonesOptional Types: T400=4.9mm, M550S=5.5mmFeatures: Durable, Slow Rising, Comfortable, Easy ReplacementSize Details:[S] External Diameter: 12.0mm/0.47", Height: 9.00mm/0.35" (Approx.)[M] External Diameter: 12.8mm/0.50", Height: 10.0mm/0.39" (Approx.)[L] External Diameter: 13.6mm/0.54", Height: 11.0mm/0.43" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:2 x Ear Tips (Phone and Earphone Not Include)