12 pcs S/M/L Hybrid Replacement Set Earbuds Eartips for Sony XBA , MDR and DR Series In-Ear Earphone Headsets 12 pcs S/M/L Hybrid Replacement Set Earbuds Eartips for Sony XBA , MDR and DR Series In-Ear Earphone Headsets COMES WITH PROTECTIVE DURABLE BOX ORGANIZER: KEEPS YOUR ACCESSORIES FROM GETTING LOST AND BEING ALL OVER THE PLACE 12 pcs S/M/L Hybrid Replacement Set Earbuds Ear tips. Water washable, antistatic, removable and replaceable. With one hand hold the ear tip and the other, the In-Ear Earphone Driver. Place the Driver of the Earphone in the edge of the ear tip canal. Using your thumb, apply pressure and push down on the top of the ear-tip onto and until the ear tip has fully covered the Driver of the Earphone. Once you have put them on properly, they will stay on securely.