This product is either discontinued or we cannot get that from suppliers.
Poly Plantronics Spare 80354-01, Ear Cushion, Compatible to use with HW710, HW720, HW291N, HW301N headset, Material Foam.
The Poly/Plantronics EncorePro Foam Ear Cushions 80354-01 is a spare ear cushion that is suitable for your Plantronics HW710, Plantronics HW720, Plantronics HW291N, Plantronics HW301N headsets.