This product is either discontinued or we cannot get that from suppliers.
Poly 203710-01 Plantronics Spare Earbud, Wireless headset, Ear tips kit, Poly Voyager 5200.
Plantronics Voyager 5200 Eartips Kit Size Small (package of 3). Plantronics ear tip kit with foam covers for Plantronics Voyager 5200 Bluetooth.