Features: High quality memory foam tips, comfortable, and secure-in-ear fit; The memory foam tips noise isolation offers superior audio experience, enhanced bass, and good seal that blocks out external noise. Application: for WF-1000XM4 and other wireless Bluetooth-compatible headsets. Slow-rebound noise reduction, super soft, comfortable and safe, suitable for exercise. Does not interfere with charging; offers a superior sound experience. Package Includes: 1 Pair x Earphone Earpads Specifications: Size: S/M/L Color: Black/Gray Material: Sponge Fit for: WF-1000XM4 Earbuds S-Size: (approx) Outer Circle Diameter 11mm, Inner Mounting Hole Diameter: 3.8mm-5.5mm M-Size: (approx) Outer Circle Diameter 12mm, Inner Mounting Hole Diameter: 3.8mm-5.5mm L-Size: (approx) Outer Circle Diameter 13mm, Inner Mounting Hole Diameter: 3.8mm-5.5mm Quantity: 1 Pair Note: Does not include earphones. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement.