Foam ear cushions designed for: H51, H51N, H61, H61N, H91, H91N, H101, H101N , Supra, Plantronics Encore, PLX, and SP Spirit headsets and most standard size office headsets. Soft foam ear pad allows maximun sound to the ear from the speaker Packaged Quantity: 20pcs Materials: Foam 2pcs Mic Windscreen foam cover as gift