SpinFit CP100-M &ndash; Patented Silicone Eartips for Replacement (2 Pairs, Medium Size) (3.8mm Nozzle Dia.) SIZES: CP 100 offers Extra Small (purple nozzle) / Small (pink nozzle) / Medium (red nozzle) / Large (yellow nozzle). QUANTITY: The package includes 2 pairs of silicone replacement eartips. USES: Wide range of uses. Fits most earphone with soundport nozzle 4.5 mm ~ 5 mm. Including major earphone brands: Audio-Technica, Beyerdynamic, Denon, Harman Kardon, JVC, Klipsch, LG, Mee Audio, NUforce, Philips, Samsung, Sony, Westone, Yamaha and more. DESIGN: Premium soft silicone eartips that swivels which provide outstanding and lasting comfort. Consistent Seal. Sound isolation and High-intensity listening. In-ear stability. Flexible, removable, reusable and durable (much more durable than foam ear tips). Perfect replacement for your stock earbuds eaphone eartips!