About us: (Krone Kalpasmos) We are specialized in leather products, such as premium quality Replacement Ear Pads, Minimalist Wallet and Business Card Holder. 'KK' listen to the customers and adopt the superior materials as well as consummate craft, being committed to creating the high-quality exquisite handicrafts for people and providing the highest standard of service Professional Advice: For personal health, it's better to replace your headphone ear pads each 7-8 months. So take the place of the old ear cushions with the new ones regularly is not only improving the sound quality, but also about keeping healthy. Compatible Models: Turtle Beach Stealth 300/400/450/500X/500P/520/600/700; Turtle beach Ear-force PX 5/PX 3/ M5Ti; Audio Technica ATH-M30/M30X/M40X/M50X;Sony MDR-V6/MDR-ZX700/WH-Ch700N; Kingston HyperX Cloud 2; Clear-com CC400/Clear-com CC-300;Ultrasone PRO-900;Sennheiser HD 4. 40BT;Pioneer Dj HRM-6 and more large oval over-ear headphonesMaterials:First layer ice silk lycra cloth:cozy and skin-friendly, giving a cooling touchSecond layer cooling gel:elastic, keep long-time cool feelingThird layer memory foam:kind of inert sponge, soft and slow recovery, enhance noise cancellingSurrounded protein leather:durable and crack resistant, longer lifetimeNotes: 1. The ear pads may have slight size variation by +/- a few mm from the dimensions given, but not affect their fitting. 2. We put the silica gel desiccant in package to protect product from dampness. There maybe odor from desiccant, but it is not harmful for people and will disappear quickly after opening the package.Thanks for your kind understanding and patience!