KOSS Sponge Cover earmuffs for KSC17, KSC75, Porta Pro PP, KTXPro1 sponge cover Ear cap
Suitable for Gauss KSC11, KSC17, KSC75, PortaPro (PP), KTXPro1; Sennheiser PX100 PX200 and other headphones
Outer Diameter:48mm
Inner Diameter:32mm
Depth:9mm
Because the sponge is easily deformed, the actual measurement will be biased.