3 Pair Clear Medium Replacement Silicone Ear Tips for Sennheiser CX300, CX400, CX 500, CX300P, CX500G4ME, CX55 High quality silicone earbuds/eartips/earpads/ear cushions Clear Eartips in Medium Size provides comfortable, secure ear-canal fit Sound isolating design reduces ambient noise for high-intensity listening 3 pairs of clear eartips in Medium Size