Plantronics 15729-05 Replacement Ear Cushions for Supra and Encore Headsets Type: Ear Cushion Specifications: The Plantronics 15729-05 Ultra soft replacement ear cushions (2 Pack) are designed to fit the Plantronics Supra (H51, H51N, H61, H61N) and Encore (H91, H91N, H101, H101N) headsets. Just another accessory in the Plantronics selection of Genuine Replacement Parts.