High elasticity light-weight soft and comfortable touchingPrevent sound leakage reduce noise and improve the fidelity of musicEasy to adjust update unhygienic worn or unusable ear padsApplicable for Headphones Headsets; H51 H51N H61 H61N H91 H91N H101 H101N SP04 SP05 Supra Plantronics Encore PLX500 and SP Spirit headsets and most standard size office headsetsOffer optimal comfort during extended wear and the foam's dimensions ensure precise fitting