<p><br>Compatibility <br>Headphone Sponge Covers cushions designed for: H51, H51N, H61, H61N, H91, H91N, H101, H101N, SP04, SP05, Supra, Encore, PLX500, and SP Spirit headsets and most standard size office headsets <p><br>Foam Ear Cushions<br> Instead of throwing away the full headset, simply replace the headphones cushions. Comfortable as your original ones - Make sure you aren’t downgrading when you replace your ear pads <p><br> Soft Ear Cushion for Headphones; <br> - Classroom testing <br> - Spa headphones <br> - Hotel headphones <br> - Airline Headphones <br> - for Libraries, Hospitals, School / College, More